It’s definitely worth loosening the core on tubeless valves and letting some air out then reinflating on a regular basis. This lets you check they’re not too clogged or sticky when it’s easier to deal with, rather than finding out they’ve got gummed shut in an emergency situation. Check that the collars holding them into the rim haven’t worked loose enough to leak either. Don’t ever do them up super tight though or you can damage the seal/tape.