I also confirm that the GPU usage is related to the terminal. And especialy when it scrolls.
It’s a big concern when runing auto reload servers and having huge stack trace.
It seems to eat a lot even on high end GPU, looks like there’s a loop on the refresh that copies same memory many times.
I also noticed that the spikes are lower when limiting windows refresh rate at 60Hz instead of 144Hz.
VsCode suffer the same problem. Slightly less I think.
Hope this helps.