GPU and Ram prices are sadly also very high at the moment... probably the worst time to build a new high end PC.
AMD is getting better, but doesn't seem quit there yet. Steam and phoronix still seem to generally agree nvidia is still the #1 choice on linux. #2 (stability wise) seems to be Intel's GPU. AMD's working on it, but decent performance often requires a custom build stack not supported on any current Linux distro. I'd rather not have to recompile my own kernel, mesa, and related just to get reasonable stable and decent performance.
On my personal experience, I disagree.
yet which still cannot run Wayland/Xwayland+XGL. And you cannot do anything about it.
As you say, these i7s are still handling the load quite nicely.