@adminsmith, youâre not using the snap, that is clear â but you may try this Built-in CODE & Nextcloud Office configuration as it should work for non snap instances too.
it is important to note, that your server must be clearly recognised by Built-in CODE discovery, so hosts and FQDN is important and especially config.php overwrite-cli see: overwrite-cli
in addition, during our tests we have noticed prolonged discovery times when activating Built-in CODE, probably due to more stringent background connectivity tests⌠try wait a little and keep hitting (F5) refresh for the connection to turn green. if in doubt, clear the config (steps 5a) and try try again.
hth