I want to upgrade my Kubuntu install to Kubuntu 22.04 LTS as soon as it's released.
As a general approach (not only for the transition to 22.04): is it required to remove all ppas before upgrading? If yes: Can I save a list of all ppas to readd them later? And will all software be still there after the upgrade (flatpaks, snaps, apt apps and apps from ppas)?
