Eating lunch alone with a good book beats eating it with people who make you shrink.

Company that needs you to be less of yourself is not really company, it is an audition you keep passing by getting smaller. An hour alone with something you like costs you nothing. An hour spent monitoring your own voice, checking which parts are safe to show, takes something you do not get back at the end.

Notice how you feel twenty minutes after a table, not during it. Lighter or tighter is the whole test. If it is reliably tighter, spend a few of those lunches somewhere else and see who comes looking for you.