I’m not a fan but TSA just cut the locks off previously. Then you’re out the cost of a lock and your bag is open to anybody even without a key. I still use a TSA approved lock but it also has a little indicator on it that turns red if it’s been opened with the TSA key. So at least I know.

Most luggage isn’t even remotely secure anyway unless you travel with hard cases with latches. The zippers on most bags you can separate with a ball point pen in seconds. Then just grab the zipper and pull it to the other side and it’s sealed again.