i tried to get kde plasma on my fedora, when i booted it up there was just a black screen. i couldn’t type any commands either, it was toast
thankfully i’ve got windows dual booted because i’m a filthy 
who uses it for vr games. unfortunately windows doesn’t let me see my linux drive’s files so all of my personal files are unrecoverable.
thankfully i think the most i had on my computer was my music (yt-dlp is so easy i can get it all back in 30 minutes tops) and a few files from some project i was working on, sucks but not worth spending hours troubleshooting. oh well.
on the bright side, i’m RETVRN-ing to my old reliable, linux mint with xfce. i’ll miss hot corner and the other niceties that gnome has but xfce will be a bit more comfortable for me.
You could simply switch to a virtual TTY with CTRL+ALT+ARROW KEYS
Second, you are not special because you use Linux. You are not trash because you use Windows. At the end of the day we are all just slowly moving to more open solutions like Linux because they are better.
Just a side note but you should not install two different desktops at the same time. Best practice is to do a fresh install with a clean home but you also can install KDE and remove gnome though dnf groups.