I might state the obvious here, but static typing, null-safety, being able to refactor and such things make C# much much better for bigger games. Slay the Spire 2 has been made with Godot + C# and people have already decompiled and peeked under the hood (for example here https://www.youtube.com/watch?v=SpB4-W9L4ec) and imo it shows quite well how certain patterns simply require a more powerful language than GDScript or would at least be very painful and fragile to make in GDScript.
Your workaround for shader stuttering sounds quite hilarious :D I don't mean it's bad. It seems pragmatic in a good sense. But yeah, it's those limitations that pile up when making Godot target the web...
the worst part is theres no defined build step so `@tool` scripts run both in the editor and at export time. its easy to accidentally crash the editor or mess up your scene with a bad editor script missing one line of code. and as far as i remember its impossible to undo so remember to save often.
godot is still the best option if you want a open source engine for your game but only because bevy is not production ready yet.