Pretty certain that KDE Plasma on Rocky Linux isn't forced to Wayland. In fact, a dig through the package repository of RL9 shows that Wayland support is separate. You most likely just needed to switch the session through your Display Manager.
There's almost definitely a way to get X11 installed and working on it. Or probably like 5 other popular distros that serve a similar criteria you need. Explore your options a bit before hopping, glad you found something usable though
I'm one of those idiots who bashes his head against a wall for five hours and then finds a LInuxQuestions post from 2001 that says "tick the box" or "check the menus" and then I'm like "oh... right." I only feel dismayed at using an Ubuntu variant because I haven't had fun tinkering with a RHEL clone since CentOS got shitcanned for CentOS Stream.
The live USB image I made for Rocky Linux 9.4 kept forcibly rebooting my PC the moment that the desktop loaded in. Didn't care enough to figure out why, I just assumed the session uses Wayland. Opted for Linux Mint MATE instead, since that's never once let me down. It just gets
boring after a while.
Booted into X11 on MATE without issue, it recognised my monitors at the correct resolution and refresh rates, and did the usual post-install updates+reboot. Already have Lime3DS, MelonDS, PPSSPP, Steam, and my Firefox profile set up. Xbox One controller's working perfectly, I copied all my ROMs/ISOs over along with my save data, imported my steam games on the hard disk I have, mapped controllers, tested a few games with no problems insofar as frame rate, performance, input lag, or whatever else. Hulu and HBO Max work too if you remember to toggle Widevine on.
Maybe I'm not doing enough right now, but for a first 24 hours with a freshly installed Linux distro? It's
eerily stable and functional. Nothing's gone horribly awry yet, and everything's comfortable enough so far. When does it go sour?
Doxed my hardware in the past via neofetch a few times, but Ryzen 5 with an RX Vega 64 does combo well with FOSS nowadays. I'm glad as hell I'm not running any NVIDIA hardware with hindsight.