HTML5 export for Godot 4.x takes 1-2 minutes to load on macOS

[Luzzotica]

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Bugsquad note: This issue has been confirmed several times already. No need to confirm it further.
Bugsquad note2: Also, please avoid asking when this will be fixed. The issue is confirmed to be with the version of ANGLE used by Chromium, so we are all waiting for Google to ship the fix.

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Godot version

4.0.beta10

System information

MacOS Monterey 12.2.1

Issue description

Godot games block the main thread (And potentially crashes it) on MacOS.

Untested for Windows or Linux.

This happens from both a generic build and when you run the project in a browser from the engine.

Steps to reproduce

Create a new project for Godot Beta 10.

Add a UI Button to the screen.

Have it print things out, whatever you wish.

Add an HTML5 export, install the HTML5 export library if necessary.

Click the run on HTML5 button on the top right.

Proceed to wait for 1-2 minutes before the game will fully load.

Minimal reproduction project

TestGodot4Web.zip

[Calinou]

Duplicate of #41118 and/or #68647 (same cause – large size causes slow initialization times).

[Luzzotica]

@Calinou I feel like this isn't the same as those. I don't believe it's a size issue.

Running locally on MacOS on both Brave and Chrome: Took about ~2 minutes and 30 seconds for the game to load. Both Brave and Chrome wanted to kill the tab. It had locked up the entire browser for (Couldn't go to any other tab).

Running this on Windows, and the game loads in ~10 seconds.

If this is a size issue, then MacOS Chrome and Brave are just INSANELY slow to load things. Which doesn't seem right.
Also, since I'm running it locally, I assume the web assembly can load faster... This might be untrue, but I doubt that it is.

[Zireael07]

In that case, it might be shader loading and/or conversion (correct me if I'm wrong, but MacOS converts stuff to ANGLE behind the scenes, doesn't it?)