There is a lot of Client Locks and IPC Locks in PostgreSQL
Those are not locks, those are wait event types. If you are searching for them specifically as lock types, that might prevent you from finding much.  It would be nice to know what the actual wait events are, rather than just the general category.  If POWA doesn't provide a way to drill down on that, you can inspect pg_stat_activity directly for the wait_event column.
These probably do not indicate a problem.  But if you already know you have a problem, they could tell you where to look for it.  Do you have a problem?  E.g. are your users complaining about slowness?