I guess I'll relegate this account into my solutions dump, like a scratch paper, so uhh starting now, I've found that sometimes the "portal" for selecting a window for screen sharing doesn't pop up on KDE sometimes when I'm using OBS
Running "systemctl --user restart pipewire.socket xdg-desktop-portal.service" fixes it. I use Arch, btw.
I might investigate this problem when it pops up again cos it happens randomly...
