[FoodWThrow]

One is built with webgl and typescript, the other with Godot.

It shouldn't surprise anyone that a tech built for a specific purpose (video games) with Linux as the first class platform, performs better and is more stable than arguably the second most complicated piece of software engineering the humanity has ever devised - the browser.

The more complicated your stack is, the more problems you will have. The Linux specific bugs also tend to increase (and become nigh unsolvable) with Unity. Godot is much leaner, and tends to wield this fact as its strength. As an unrelated example, there are multiple community plugins for implementing different physics engines in Godot, when such a thing is an exercise in frustration in Unity or Unreal, for varying reasons.