FYI, replacing mysql8 by mariadb also solves it, see https://askubuntu.com/questions/1182115/why-does-akonadi-not-start-after-upgrade-from-ubuntu-19-04-to-19-10
However this might not be an option for everyone...
FYI, replacing mysql8 by mariadb also solves it, see https:/ /askubuntu. com/questions/ 1182115/ why-does- akonadi- not-start- after-upgrade- from-ubuntu- 19-04-to- 19-10
However this might not be an option for everyone...