Querying a policy

Hi all!

We are evaluating migrating our software RLS to Postgres by using policies.

Having a "FOR UPDATE POLICY" on a table, I was wondering if there is a way to know, before trying an Update and getting an error, if the current row can be updated ?

The goal is to show or hide the edit button in my software forms or lists.

I know that this query can return the CHECK condition of my POLICY:
SELECT pg_get_expr(polwithcheck, polrelid, true) FROM pg_policy;

But is there a simpler way to get the ids the current user can read and the ones that he can update?

Thank you!

Jeff