User Edition as of today:

systemctl enable ssh

doesn't work with bridge0:

# journalctl -b | grep ssh

sshd[4804]: error: Bind to port 22 on 192.168.<etc.> failed: Cannot assign requested address.
sshd[4804]: fatal: Cannot bind any address.
systemd[1]: ssh.service: Main process exited, code=exited, status=255/n/a
systemd[1]: ssh.service: Failed with result 'exit-code'.

BUT!!!

Can flawlessly started later (manually):
# systemctl start ssh

Bridge is needed for VirtualBox etc.
Start-at-boot is needed for remote maintenance.
At work and to support family members.

Probably faulty boot-activation sequence.