Currently running Ubuntu 20.04 LTS with Thunderbird v91.11 installed from Debian packages, but soon switching over to 22.04 LTS, what is the best way to update Thunderbird to the most recent version available from Snap Store or Flatpak while keeping all settings, accounts and mail databases?
Will it be done automatically during Ubuntu upgrade, or should I switch to Snapcraft before upgrading, or should I keep the package install and switch to Snapcraft or Flatpak after doing the 22.04.1 upgrade?
(I don't have Flatpak yet but I guess I will after I have upgraded to 22.04 LTS.)