Something KDE has done seems to have resolved the issues I used to have with DPI related scaling problems in Wayland. Once Plasma 6 hit, it's been nothing but rapid improvements with Wayland as a focus and man does it feel nice.

That said, there's virtually no downside to still using X unless you have explicit display features you need from Wayland like HDR or the per-display scaling. Xfce is stupid lightweight and still my default for anything where battery life is a benefit.

Ah, my monitors are all identical and stay plugged in all the time, so it's a much less complicated use-case than yours.

I do have one issue where, because I picked the wrong 9070XT on launch day and couldn't exchange it due to lack of availability, one of my monitors is on HDMI instead of DisplayPort and takes annoyingly longer to wake from sleep or change modes than the other two. But I think that's more likely a hardware or driver problem than a Wayland one.

The fact that you're comparing Wayland to XFCE tells us you're not entirely sure what you're doing. One is a compositor and the other is a desktop environment.

Your problems are with GNOME. I dont even think you could define what X11 and Wayland are based on your posts, much less articulate why one is better than the other

Start by reading about Wayland. Don't make shit up and defend a position you can't even articulate. It's cringe.