As someone with a shallow grasp of rendering in general, it amazes me that we can achieve near 60fps for these insanely detailed games with tons of 3D objects, and yet we find it difficult to do the same with 2D UI rendering.
Just wait until your BBQ has its own browser - oh shit wait
It's not because JavaScript is portable or accessible (it's definitely not portable, and if you wanted accessibility you could do much better), it's simply because it's the most popular language.
More and more gets ported to the GPU through parallelized algorithms, and smart GPU memory usage — but CPUs still offer a lot in their ability to do generalized computing.
This is why as I’ve gotten older I’ve come to really respect Computer Science fundamentals; the more you understand how to make the most of resource constraints — whether time, or memory, etc — the more magic you can make.
I think Apple has said that Core Animation (and maybe Core Graphics) now use Metal where possible, but vector to bitmap rendering is still done on the cpu.
https://raphlinus.github.io/rust/graphics/gpu/2019/05/08/mod...
If web frameworks really reupload the whole view to GPU on each frame, it's no wonder all apps run like arse and burn battery.