Settings for a new phone (2025)

I just upgraded from a 13 Pro to a 16 Pro. I really hadn’t looked much at ios18 after installing it late last year. Just learned a few things as I’m playing with the new phone.

I know that a lot of settings transferred but I’m wondering if there are settings I should double check or learn about, especially as it deals with security and other important things. I’m not talking about app specific things or notifications.