I just discovered that ownership and permissions for older users (created sometime in 2023) and a new user, created today 2024-03-06 differ.
old users: grommunio:groweb 660 for the user@domain.tld directory and the index.sqlite3 file in it
new user: grommunio:gromox 640 for the user@domain.tld directory and the indes.sqlite3 file in it
So far, everything seems to be working.
Question: is this expected behaviour?