i feel that x11 support is still better than wayland's at this stage and if you're specifically wondering about plasma, it only just recently starting officially working with wayland in its most recent release so you're probably not yet left behind.
i started purchased linux laptops & workstations from a linux company a few years ago and that ensured that i don't have problems like the one you're experiencing and lemmy has taught me that all the smooth sailing w those linux rigs have given me, has made me fall behind; so i'm buying the cheapest and most proprietary windows laptop i can find and installing linux on it to use as my daily driver to sit next to my work laptop.