M2 Max Studio is my "daily driver" and I have an M1 Pro 14" MacBook Pro. Both continue to have plenty of overhead for what tasks I throw at them so I will hold on to them until they physically fail.
Base M2 Air and M1M Studio. Both are terrific. The M-series chips are so good that it's nearly impossible to justify upgrades. I could see replacing the Air because I'm a tad memory constrained but I need to feel pain before I do it.