Sway still primarily counts as a WM + Compositor, but considering it has keymaps, autostart, and libinput config mechanisms embedded in it, I would say it borders a desktop environment.

The inhibit_idle specifier is cool, thanks for the pointer. This two liner can be replaced with:

for_window [all] inhibit_idle fullscreen

• Sable - but you’ll want to use protontricks to install dxvk
• Stonefly
• Far - 1 & 2 are both good, but I still prefer the first one
• Vane
• Lightmatter