GNOME on Wayland seems to handle moving windows between displays with different DPIs, it's not super graceful and seems to only apply the new DPI once >50% of the window is on the new display though.
I haven't used fractional scaling, but it's supposed to be behind a flag. But I suppose it could be blurry.
I haven't used fractional scaling, but it's supposed to be behind a flag. But I suppose it could be blurry.