I still have a 2019 MacBook Pro with the non-butterfly keyboard and escape key (unfortunately still the Touch Bar).

It’s still a great laptop except the battery lasts maybe 75 mins. I just keep it plugged in but despite the fact it’s 6 years old I don’t notice any problems with it.

I’m tempted to buy an M4 laptop just because it’s “new” and “faster” but then I ask myself Why? It’s the same thing with my iPhone. Until my laptop dies or there is something functional that I can’t do with my old laptop I’m going to keep using it.

I have an M1 air that still lasts 7-8 hours on one charge. It's very different than the Intel battery life which I had 5 or 7 machines over the years.

depends on use, I had the same laptop but the speed increase when I upgraded to an M3 was easily worth it