My iPhone 6S+ is still running super smooth. Maybe because I'm not a huge photography buff or mobile gamer, but each year I wait to see something that will finally make me buy a new one, but each year I just don't see it. I don't know exactly what I'm waiting for, but this wasn't really it. (Also enjoying using one of the last TouchID iPhones during Covid 19)
When they released the iphone SE last year I immediately bought it. It was the fastest processor, best quality camera in an Apple phone with Touch ID. I refuse to upgrade to an iPhone without Touch ID. Until my phone absolutely dies and there is no choice, then I may consider.
When it became clear that people around the world were being legally required to cover their face, in some places at any time they left the house, Apple should have raced to equip the next iPhone with a fingerprint scanner. Apple didn't even apologise for not including one. I would have bought the phone with that feature. Maybe next year.