I tried a Nokia-in-name-only modern dumbphone (a compact one without the retro styling), and it did what I needed, which was mainly SMS 2FA.
Until a manager for a tempting job wanted to do the first call on the phone. The call quality was so bad, it bombed the interview for me. So I kissed my privacy goodbye, and bought an iPhone.
(I've since switched to a GrapheneOS phone, which works well, with less violating.)