dovecot - Jan 2021 - What is the right way to move messages between mailboxes?

I?m working on a spam filter.  Incoming messages are sent to an ?incoming?
folder (via a sieve script) where they are processed by the filter and moved
either to INBOX or Junk.  My question is: what is the right way to effect this
move?  Can I just mv the file?  With Dovecot automatically notice this and
update any connected IMAP clients?  Or is there some other procedure and/or
utility (doveadm?) that I should be using for this?

Thanks,
rg