[Bug]: 6.0.0 fails to show window on Ubuntu 24.04 with some Wayland configurations

Checks before filing an issue

• This issue doesn't reproduce on web browsers (such as in Chrome). If it does, issue reports go to the Mattermost Server repository.
• I have checked the issue tracker and have not found an issue that matches the one I'm filing. This should include closed issues.
• This issue is not a troubleshooting question. Troubleshooting questions go here: https://forum.mattermost.com/c/trouble-shoot/16.
• This issue is not a feature request. You can request features and make product suggestions here: https://mattermost.com/suggestions/.
• This issue reproduces on the most recent stable version, or the most recent prerelease version of the Mattermost Desktop App.
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Mattermost Desktop Version

6.0.0

Operating System

Ubuntu 24.04 LTS

Mattermost Server Version

No response

Steps to reproduce

• Install 6.0.0 release using the deb
• Try to launch mattermost

Expected behavior

Mattermost window should appear

Observed behavior

App appears to start, and tray icon is visible, but no window appears

Log Output

ubuntu@noble-desktop-vm:~$ mattermost-desktop
11:00:47.167 › Logger Log level set to: { level: 'info' }
[macos-notification-state] failed to load 'notificationstate' addon Error: Module did not self-register: '/opt/Mattermost/resources/app.asar.unpacked/node_modules/macos-notification-state/build/Release/notificationstate.node'.
    at process.func [as dlopen] (node:electron/js2c/node_init:2:2617)
    at Module._extensions..node (node:internal/modules/cjs/loader:1874:18)
    at Object.func [as .node] (node:electron/js2c/node_init:2:2844)
    at Module.load (node:internal/modules/cjs/loader:1448:32)
    at Module._load (node:internal/modules/cjs/loader:1270:12)
    at c._load (node:electron/js2c/node_init:2:17993)
    at TracingChannel.traceSync (node:diagnostics_channel:322:14)
    at wrapModuleLoad (node:internal/modules/cjs/loader:244:24)
    at Module.require (node:internal/modules/cjs/loader:1470:12)
    at require (node:internal/modules/helpers:147:16) {
  code: 'ERR_DLOPEN_FAILED'
}
Checking for beta autoupdate feature for deb/rpm distributions
Found package-type: deb
11:00:47.229 › [App.Initialize] Current working directory is /home/ubuntu, changing into /opt/Mattermost
11:00:47.271 › [App.Config] config.autostart has been configured: { autostart: true }
11:00:47.298 › [SecureStorage] Secure storage initialized - encryption available
11:00:47.306 › [SecureStorage] Initialized secure storage cache
11:00:47.325 › [ServerDropdownView] init
11:00:47.334 › [App.Initialize] Autoupgrade disabled: false
[23266:1114/110047.337820:ERROR:components/viz/service/main/viz_main_impl.cc:189] Exiting GPU process due to errors during initialization
11:00:47.346 › [i18nManager] Failed to set new language { locale: 'en-US' }
11:00:47.346 › [i18nManager] Failed to set new language { locale: 'US' }
[23358:1114/110047.444602:ERROR:components/viz/service/main/viz_main_impl.cc:189] Exiting GPU process due to errors during initialization
11:00:47.560 › [ModalView] [welcomeScreen] preloading with /opt/Mattermost/resources/app.asar/internalAPI.js
11:00:47.643 › [WebContentsEventM...] [renderer] Uncaught (in promise) TypeError: Cannot read properties of undefined (reading 'sidebarBg')
11:00:53.065 › [BaseWindow] window closed

Additional Information

Seems to work fine on Ubuntu 25.10

Start by running mattermost-desktop on Ubuntu 24.04 with the affected Wayland configuration and compare the startup output, especially the BaseWindow close and renderer errors. Trace the launch path that creates the window; done means the installed 6.0.0 app displays its Mattermost window instead of only showing a tray icon.