You want all your access ports to be explicitly configured or not work, is what I mean. In case for some reason they're not admin down by accident
I'm far too lazy to monitor SNMP for this on my own network
nostr:npub1yck44z5zqxmwpqzqs75ay6ffjdw843ng9p6mz0lzfff3fgz2djlsngujmw What? No.... What? Huh? WTF?
This is not how VLANs work. Do you just, refuse to aknowledge the existance of VLAN pop and push operations, AKA.... access ports?
I can't even, what on Earth are you smoking?
Discussion
nostr:npub1yck44z5zqxmwpqzqs75ay6ffjdw843ng9p6mz0lzfff3fgz2djlsngujmw Straaaaange choice of wording.
And whether VLAN 1 has an actual VLAN ID value stamped into the frame header or not is imatterial to your described situation.
VLAN 1 being untagged is still logically batshit insane.