I’m not sure if pointing the public fqdn to the local host works in your setup… but seems it doen’t work either:
if your hosts file would work the connection would go to 192.168.0.4… Maybe Probably DNS help with NC Docker + Collabora + Wireguard tunnel - #5 by wwe helps… If I don’t miss anything important I think in case of aio you have to add the alias to the apache container