For local usage on linux there’s virt-manager, has been good enough for my use at least, and the integrated spice client has relatively good graphics performance for normal desktop use.
Edit: don’t know about a good gui for running qemu on windows, though
Quickly played the storyline of Detroit: Become Human through for the first time, some Dishonored for nostalgia and fell back to playing the PS2 games I never had the console for back when I was a child.
Most of my recent hours have gone to Rayman 3, and there’s a big heap of PS2 games to go through after that. I’ve noticed PCSX2 doesn’t consume much battery, so my typical travel games tend to be PS2 games as well.