Approximately zero MacBooks will be replaced by Linux laptops in the next couple years. There is no new story in the Linux desktop world to make a Linux Laptop more appealing. That people already selected to develop on MacOS and deploy to Linux tells you all you need to know there.
MacPorts and Homebrew exist. Both support M1 more or less and support is improving.
Big Sur is a Big Disaster but hopefully this is just the MacOS version of iOS 13 and the next MacOS next year goes back to being mostly functional. I have more faith in that than a serviceable Linux desktop environment.
I may be naive but that seems like hyperbole. I updated to Big Sur shortly after is was released. It was a little bumpy here and there, but not more than any other update. I'd even argue it has been as smooth or smoother than any of my Linux major upgrades in the past 20 years.
I haven't updated but my impression has been that this is a "tock" release, as in "yeah we shipped some big UI changes but we'll refine them, very little of substance changed in the underlying systems". And that's great, and I look forward to being a medium-early adopter before the worst of the UI gets a big refresh next year.
MacPorts and Homebrew exist. Both support M1 more or less and support is improving.
Big Sur is a Big Disaster but hopefully this is just the MacOS version of iOS 13 and the next MacOS next year goes back to being mostly functional. I have more faith in that than a serviceable Linux desktop environment.