>I read as "Whoops we made the M1 Macbook Pro too good, please upgrade!"

>I think I will get another 2-5 years out my mine.

I only own a M4 because the M1 had a hardware fault and I needed a replacement ASAP. (I sold the M1 after repair.)

Although I'm glad to have a newer machine with longer future support, I have yet to notice any meaningful performance difference.

Ditto. Though, I fixed my M1. I have an M4 max for work; the nano screen is a win. The perf is better, but it's really marginal unless actually doing stuff with the GPU, then it's super slow compared to a decent GPU anyway (i.e. h100, gb etc)