what is the best OS to use. I have been using ubuntu but i noticed that most of the howto's are for Debian. Since I will rebuild from the ground up should I stay with ubuntu (currently 18 fault became noticeable when trying to upgrade to 20) or move to Debian? Thanks in advance
They are very similar indeed and it heavily depends on own preferences. If you're used to Ubuntu and don't use Debian you may want to stick with Ubuntu. There shouldn't be much differences in the guides anyway