I don’t know how I fixed it, but KDE Plasma 5.whatever on MX was acting up. It would let me login but if I couldn’t do much else. Wouldn’t respond to my clicks or anything. Thankfully I could open Yakuake and install a different desktop environment. Then, one day while I was backing up files to do a reinstall, it started working again. I could use Plasma without issues. I have no clue what fixed it, though.
It also came with a non-issue of now my laptop won’t auto turn on every time I open it up, but I’ll take that over having to reinstall and set things back up.