I'll think about it. If after clearing data I lose my categories, I'm very far out of luck (unless I can do a restore from Samsung Cloud and the categories are saved there).
as I said in a different place, my Samsung Messages shows RCS toggled on in Settings when Google is selected as Default. once I select Samsung as the Default, RCS disappears for me, at least on AT&T.
I've seen a few 9PXLs in the wild. Not a bad looking phone, necessarily. But I'm hard-pressed to identify any phone out there that's particularly attractive.