Not sure if it's still the case in the 2020's, but back in the 2010's I had no end of issues with Windows deciding to either fuck up the dualboot so nothing would load or overwrite it entirely and leave it as Windows only.
EDIT: looks like it was 2016 i stopped dual booting and switched to vfio because I built a new computer for it a year later https://imgur.com/gallery/battlestation-4BuoZ Ironically reading that back I have just recently started getting into film photography.