Ya I just went through this myself, long story short, never sync your home dir to nextcloud via the desktop client. Do the sub folders one at a time.

Seriously wild how quickly things have changed for Linux and Gaming

if I was windoze, Id be scared as shit right about now

Sames, but I would not call my transition seamless, I had to tweak a lotta things to get there and had to write a few bash scripts to do all the things I needed