How many people does this actually affect? Gamers are better off with AMD X3D chips, and most productivity workloads need good multicore performance. Obviously MR is great silicon and I don't want to downplay that, but I'm not sure that best singlecore performance is an overly useful metric for the people who need performance.
Single core performance is what I need as a developer for quick compilation or updates of Javascript in the browser, when working on a Clojure/ClojureScript app. This affects me a lot.
Usually when I see advances, it's less about future proofing and more about obsoletion of old hardware. A more exaggerated case of this was in the 90s, people would upgrade to a 200 MHz p1 thinking they were future proofing but in a couple years you had 500Mhz P2s.
Or users of Slack, Spotify, Teams.. you name it. But I don't want to make an excuse that Electron-like frameworks should be encouraged to be used even more if we have super single core computers available.
The problem with the M chips is that you have to use macOS (or tinker with Asahi two generations behind). They are great hardware, but just not an option at all for me for that reason.
Mac OS was awful. OS X was amazing. macOS feels like increasingly typical design-by-committee rudderless crapware by a company who wishes it didn't have to exist alongside iOS.
How is it amazing? In my experience it is full of bugs and bad design choices if you ever dare to steer from the path Apple expects masses to take. If you try to use workspaces/desktops to the full extent, you know.
Sir, you are not a real gamer(tm) either. Use a puny alternative OS and lose 3 fps, Valve support or not? Unacceptable!
As for Linux, I abandoned it as the main GUI OS for Macs about 10 years ago. I have linux and windows boxes but the only ones with displays/keyboards are the macs and it will stay that way.
That explains your comment then, lots of things changed from 10 years ago and gaming on Linux is pretty good now. The last games you can't play are the ones with strong anti-cheats basically. You can't compare that to the Mac situation where you can't play anything.
It is definitely not a given you lose FPS on Linux. It is not uncommon for games to give better FPS on Linux. It will all end up depending on the exact games you want to play.