Both the M3 and the EPYC will be useful for far longer than the time it takes Apple to have the M4 on their next-gen laptops. Computers last a lot longer than they used to. I have a 10 year old Mac Mini that’s still comfortable to use, and, while an M3 Mac is a beast, it’s not that much faster than an M2 (or an i7) to create a qualitative change in my workflows. What is possible now was already possible last year. It’s just faster now. I get a higher return on investment with better keyboards and screens.