It is! I've really been enjoying the KDE experience with Kubuntu!
Initially I tried downloading a few "retro" windows xp/2000 look a like themes, but something got messed up and it wouldn't let me log in? Something with the SDDM. Luckily I had just installed Kubuntu fresh earlier that day, so I hadn't set anything up, so it was easy enough to just reinstall everything, and I've just been sticking with the built in themes and not really messing with anything else lol.
I did see that with Bazzite, which is why I think I'll try it out. I just don't want to go through the whole process, only to end up with the same issues I have now due to, apparently, having a Nvidia GPU in my laptop. I know no one can tell me if I will or won't, and I just have to try it, but that's about my only hesitation.