dtonon on Nostr: Probably a dumb phone is too brutal, and insecure. A better option would be a ...

Probably a dumb phone is too brutal, and insecure. A better option would be a smartphone installing only a few essential apps and an anti-addiction launcher. I find that https://github.com/tanujnotes/Olauncher is really good in this respect.
But as always, it depends first on the person's needs.
Another problem is to minimize the physical presence of the phone, it is quite difficult to find a good compact/light phone nowadays.