When/how frequently do you replace your phone with a new one?

Asking because... On one hand I do see smartphones being released left-and-right, and they are rather integral to modern life

On the other hand I'm still chugging alone with my Pixel 6a that I bought 3 years ago with a replaced battery and a somewhat clogged charging port... and all my previous phones I only replaced when they have serious deficits that make them difficult to use

Wondering when you all replace phones. Please definitely mention it too if you ended up repurposing the old phone for something else