The primary reason I moved to iPhones was because I got absolutely sick and tired of my android phones being abandoned by the manufacturer after a year. I’m sure it is better these days, but those earlier days of extremely slow Carrier-based updates completely ruined my trust and I know I’m not the only one.

Security updates are usually provided for a long time even if in a trickle.

It depends on what you count as an old phone. It’s Galaxy S10 in this case, it’ll probably stop receiving updates soon.