I don’t have a fundamental problem with web apps having access to GPU resources. There’s obviously games that can benefit from that.

In general, I don’t have a fundamental problem with any of this being there provided the attack surface area can be managed. Which it isn’t, but that’s another discussion.

I have a problem with the tools being applied indiscriminately. I’d almost say that every site should start vanilla, and you’d have to specifically justify any use of JavaScript.