Chromium v92, systemd and nss
Updating chromium this morning causes it to hang on start, the error message points to a network connectivity problem.
It appears to actually relate to a systemd and nss update which is now not compatible with chromium.
A quick fix is to edit the order in /etc/nsswitch.conf to
hosts: files mymachines dns myhostname resolve [!UNAVAIL=return]
and then restart the service
systemctl restart systemd-resolved.service
This is only a work round until chromium catch up with the systemd changes but it works and keeps the web browser fully up to date.