It's a common problem, which is why it's also a commonly solved problem. Sublime Text has been GPU accelerated for over a decade, there's multiple GPU-accelerated terminal emulators for all the terminal-based editors, VSCode is GPU accelerated, …
And most of the animations, and layouting. So "only" all the performance hotspots.
> Every program on your computer is GPU accelerated in that sense.
No, not really. At least not on win32 and anything Linux/BSD-y, some toolkit( version)s can do it, but that by no means implies every program uses it.