I too was planning the switch for a while and I was like my next machine will be a Linux PC from the beginning (in 2-3 months)
but then, few days ago I was like fuck it, then installed Debian and KDE, without any serious preparations.
I like it 😊
Tho, it's not 'final', most of my data partitions aren't mounted the way I'd like and most of my user folders are on an ntfs disk right now, but before the new PC, I can consider it as a test run, then if everything is still nice, then I'll reformat some of my drives for better integration with Linux.