How's the support for VRR, HDR and fractional scaling on Cosmic? The first DE implementing these three I am switching to immediately. (KDE is really close, to be fair)
VRR, fractional scaling, and 10-bit color depth is already supported. HDR metadata is not yet supported. These will be refined before the final release.
KDE should already support VRR and fractional scaling with more improvements coming in Plasma 6, and no non-fullscreen HDR yet until the Wayland color management protocol gets finalized
Honestly these are the only features keeping me on Windows.