I hear you.
I think it’s time I finish the job of migrating from KDE/Plasma back to Gnome. I attempted this last November (see my earlier thread), and hit some repo issues at that time.
I apologize for sounding cranky.
My first order of business is to get a reasonable backup, which means (I think) either getting nfs to work from a local fileserver or getting an external volume mounted (through USB3.1). I suspect/hope that rsync is good enough for that.