The only part that's not going to be available for a while is fractional scaling in GTK and old Qt5 software needs to update to Qt6. Everything else is rather quickly falling in place. GNOME in its stereotypical fashion doesn't seem to want to support fractional scaling and doesn't want to provide QoL features like not making XWayland apps blurry, but that's not a problem with Wayland per se.
Well, I'm glad to be proven wrong. That still looks to be a downsampling method rather than just not applying the scale and using Xft.dpi though, but that can have advantages in multi-dpi setups I guess.
