letterSpacing property not working properly

Description

When Applying the letterSpacing to style in Text component, it applies the spacing after the character instead of adding space between the characters.

Here is the sample vanila code.

<Text
        style={{
          backgroundColor: 'blue',
          color: 'white',
          fontSize: 18,
          alignSelf: 'center',

          letterSpacing: 30,
          fontVariant: ['tabular-nums'],
        }}
      >
        1/3
      </Text>

Output:

I also tried to apply the fontVariant: ['tabular-nums'], assuming that it may keep the character width same if that's the issue.
But seems that doesn't fix the error.

And this gap keeps increasing when you increase the letterSpacing.

Try 2:

<Text
        style={{
          backgroundColor: 'blue',
          color: 'white',
          fontSize: 18,
          alignSelf: 'center',

          letterSpacing: 90, // <- increased
          fontVariant: ['tabular-nums'],
        }}
      >
        1/3
      </Text>

Output:

And thus How I conclude that it may adds the space after each character instead of gap.

Here is my package.json file's dependencies.

"dependencies": {
    "@medusajs/js-sdk": "2.8.7",
    "@medusajs/types": "2.8.7",
    "@react-native-clipboard/clipboard": "^1.16.3",
    "@react-native-community/geolocation": "^3.4.0",
    "@react-native-documents/picker": "^11.0.0",
    "@react-native-documents/viewer": "^2.0.2",
    "@react-native-firebase/analytics": "^23.4.1",
    "@react-native-firebase/app": "^23.4.1",
    "@react-native-firebase/crashlytics": "^23.4.1",
    "@react-native-firebase/remote-config": "^23.4.1",
    "@react-navigation/bottom-tabs": "^7.4.6",
    "@react-navigation/drawer": "^7.5.7",
    "@react-navigation/native": "^7.1.17",
    "@react-navigation/native-stack": "^7.3.25",
    "@shopify/flash-list": "^2.1.0",
    "@tanstack/react-query": "^5.85.2",
    "dayjs": "^1.11.19",
    "formik": "^2.4.9",
    "i18next": "^25.5.2",
    "jwt-decode": "^4.0.0",
    "lodash": "^4.17.21",
    "patch-package": "^8.0.0",
    "postinstall-postinstall": "^2.1.0",
    "qs": "6.12.0",
    "react": "19.1.0",
    "react-i18next": "^15.7.3",
    "react-native": "0.80.2",
    "react-native-config": "^1.5.6",
    "react-native-fast-image": "^8.6.3",
    "react-native-flash-message": "^0.4.2",
    "react-native-gesture-handler": "^2.28.0",
    "react-native-image-crop-picker": "^0.51.1",
    "react-native-keyboard-aware-scroll-view": "^0.9.5",
    "react-native-keyboard-controller": "^1.19.6",
    "react-native-linear-gradient": "^2.8.3",
    "react-native-mmkv": "^3.3.0",
    "react-native-navigation-bar-color": "^2.0.2",
    "react-native-otp-entry": "^1.8.5",
    "react-native-permissions": "^5.4.4",
    "react-native-reanimated": "^4.0.2",
    "react-native-reanimated-carousel": "^4.0.3",
    "react-native-render-html": "^6.3.4",
    "react-native-safe-area-context": "^5.6.0",
    "react-native-screens": "^4.14.1",
    "react-native-svg": "^15.12.1",
    "react-native-video": "^6.16.1",
    "react-native-worklets": "^0.4.1",
    "yup": "^1.7.1",
    "zustand": "^5.0.7"
  },
  "devDependencies": {
    "@babel/core": "^7.25.2",
    "@babel/preset-env": "^7.25.3",
    "@babel/runtime": "^7.25.0",
    "@commitlint/cli": "^19.8.1",
    "@commitlint/config-conventional": "^19.8.1",
    "@react-native-community/cli": "19.1.1",
    "@react-native-community/cli-platform-android": "19.1.1",
    "@react-native-community/cli-platform-ios": "19.1.1",
    "@react-native/babel-preset": "0.80.2",
    "@react-native/eslint-config": "0.80.2",
    "@react-native/metro-config": "0.80.2",
    "@react-native/typescript-config": "0.80.2",
    "@tanstack/eslint-plugin-query": "^5.83.1",
    "@types/jest": "^29.5.13",
    "@types/lodash": "^4.17.20",
    "@types/react": "^19.1.0",
    "@types/react-test-renderer": "^19.1.0",
    "babel-plugin-module-resolver": "^5.0.2",
    "cspell": "^9.3.2",
    "eslint": "^8.19.0",
    "eslint-plugin-import": "^2.32.0",
    "husky": "^9.1.7",
    "jest": "^29.6.3",
    "lint-staged": "^16.1.5",
    "prettier": "2.8.8",
    "react-native-dotenv": "^3.4.11",
    "react-test-renderer": "19.1.0",
    "reactotron-react-native": "^5.1.15",
    "typescript": "5.0.4"
  },

Steps to reproduce

1. Just paste the code blocks I added in the react native project created with same version as mine.

React Native Version

0.80.2

Affected Platforms

Runtime - Android, Runtime - iOS

Output of npx @react-native-community/cli info

info Fetching system and libraries information...
System:
  OS: macOS 26.1
  CPU: (10) arm64 Apple M4
  Memory: 162.77 MB / 16.00 GB
  Shell:
    version: "5.9"
    path: /bin/zsh
Binaries:
  Node:
    version: 22.11.0
    path: ~/.nvm/versions/node/v22.11.0/bin/node
  Yarn:
    version: 3.2.3
    path: ~/.nvm/versions/node/v22.11.0/bin/yarn
  npm:
    version: 10.9.0
    path: ~/.nvm/versions/node/v22.11.0/bin/npm
  Watchman: Not Found
Managers:
  CocoaPods:
    version: 1.16.2
    path: /Users/aditya/.rbenv/shims/pod
SDKs:
  iOS SDK:
    Platforms:
      - DriverKit 25.1
      - iOS 26.1
      - macOS 26.1
      - tvOS 26.1
      - visionOS 26.1
      - watchOS 26.1
  Android SDK: Not Found
IDEs:
  Android Studio: 2025.1 AI-251.26094.121.2512.13840223
  Xcode:
    version: 26.1.1/17B100
    path: /usr/bin/xcodebuild
Languages:
  Java:
    version: 21.0.8
    path: /usr/bin/javac
  Ruby:
    version: 2.7.5
    path: /Users/aditya/.rbenv/shims/ruby
npmPackages:
  "@react-native-community/cli":
    installed: 19.1.1
    wanted: 19.1.1
  react:
    installed: 19.1.0
    wanted: 19.1.0
  react-native:
    installed: 0.80.2
    wanted: 0.80.2
  react-native-macos: Not Found
npmGlobalPackages:
  "*react-native*": Not Found
Android:
  hermesEnabled: true
  newArchEnabled: true
iOS:
  hermesEnabled: true
  newArchEnabled: true

info React Native v0.82.1 is now available (your project is running on v0.80.2).
info Changelog: https://github.com/facebook/react-native/releases/tag/v0.82.1
info Diff: https://react-native-community.github.io/upgrade-helper/?from=0.80.2&to=0.82.1
info For more info, check out "https://reactnative.dev/docs/upgrading?os=macos".

Stacktrace or Logs

Not a crash

MANDATORY Reproducer

https://snack.expo.dev/@aditya_thummar/moody-indigo-yogurt

Screenshots and Videos

Tái hiện báo cáo bằng Snack được liên kết và các ví dụ về component Text trên cả Android và iOS, thử các giá trị letterSpacing là 30 và 90. Theo dõi đường dẫn kết xuất của Text để xác định tại sao khoảng cách lại xuất hiện sau các ký tự, sau đó xác minh rằng các khoảng trống được kết xuất khớp với hành vi letter-spacing dự kiến.