IMAP or POP?

Is POP still around? I thought that was a remnant of the "Dude, look at my a Pentium"-age. Is there even a way to work with POP in the current multiverse of connected devices?

Depends on what you are doing - if your need is to access email offline use POP, else IMAP

IMAP because I use email across multiple internet connected devices.

IMAP. Email across multiple devices.