OpenGraph ImageResponse doesn't render UTF-8 characters properly

Link to the code that reproduces this issue

https://github.com/MartinXPN/next-image-response-reproduction

To Reproduce

1. Run the project with npm run dev
2. Open the browser and go to http://localhost:3000
3. Open the generated opengraph path
4. See that the image is not generated properly

Current vs. Expected behavior

The image should contain the text Բարև ձեզ. Instead, it only contains empty rectangles. See below.

Provide environment information

Operating System:
  Platform: darwin
  Arch: arm64
  Version: Darwin Kernel Version 23.5.0: Wed May  1 20:14:38 PDT 2024; root:xnu-10063.121.3~5/RELEASE_ARM64_T6020
  Available memory (MB): 65536
  Available CPU cores: 12
Binaries:
  Node: 20.10.0
  npm: 10.2.3
  Yarn: 1.22.22
  pnpm: N/A
Relevant Packages:
  next: 14.2.3 // Latest available version is detected (14.2.3).
  eslint-config-next: 14.2.3
  react: 18.3.1
  react-dom: 18.3.1
  typescript: 5.4.5
Next.js Config:
  output: N/A

Which area(s) are affected? (Select all that apply)

Not sure, Metadata

Which stage(s) are affected? (Select all that apply)

next dev (local), next start (local), Vercel (Deployed)

Additional context

As an additional request, it would be great to be able to load the fonts like in a regular NextJS app (where all the google fonts are available):

import {Roboto} from "next/font/google";

const font = Roboto({weight: ['300', '400', '500', '700'], subsets: ['latin']});

Instead of having to store the fonts locally and load the font manually like this:

const interSemiBold = fetch(
        new URL('./Inter-SemiBold.ttf', import.meta.url)
    ).then((res) => res.arrayBuffer())

Start by running the linked reproduction with npm run dev, then open the generated opengraph path and compare the rendered Armenian text with the expected Բարև ձեզ. Trace the OpenGraph ImageResponse font-loading behavior, including the request to support fonts from next/font/google; done means UTF-8 characters render correctly in the generated image.