That sounds like a solvable issue for me. The upgrade health check tells you exactly what prevents you from upgrading.
My system gets flagged as not applicable as wellndue to secire boot not being active. I could resolve it by enabling it, but since I still have an old MBT Id need to switch that aswell. Which I procastinate, as I won't get nagged to upgrade to win11
I never completely reset everything in the last few years, although I upgraded some components and did some Windows reset. The MBR never was part of it...
Yep just swapped over from a self hosted solution with gitlab and sublime.. But that was to restrictive and the overall experience wasnt really good...
I then found a post somewhere on lemmy a post abotu PKMS and what people are using... One was obsidian... So I tried it and I'm really happy
Edit: I saw some comments about some missing self hosting. Since the notes are saved as standard md files you easily ca sync them with whatever you want... I set it up with my synology NAS and DS Drive, but any tool which can sync two-ways should be fine