I believe your understanding of Linux as a desktop is woefully outdated, by perhaps over a decade. As someone who has to use all 3 big desktop operating systems for work (Linux via Pop!_OS, Windows, and macOS) and has used nearly every iteration of each operating system over the past 2 decades, I don't know how you came to this conclusion. The only area I could see macOS beating out Pop is in UX... if I didn't know how to use a computer and wanted the most frustrating experience available but also didn't know better.
This isn't just my take either - older, completely tech-illiterate family members of mine have tried out various laptops over the years that ran all of the operating systems (adding onto those big 3 OSes, they've also tried ChromeOS), and as of right now, every laptop in my family runs Pop!_OS. When it comes time for them to upgrade their laptops, they specifically ask if I'll be able to setup Pop on their new machines. They do not have to muck around in terminals or anything like that - I setup Pop, teach them how to update it and how to perform the basic tasks they need, and the laptop remains operational for years. Compared to when they were on Windows and macOS, I get significantly fewer support calls throughout the year when they're on Pop.
Not only is macOS UX, security, and performance lackluster compared to Linux, but it's also not even close to being as widely adopted as you claim to make it the "Coca Cola of operating systems". Windows holds that title, and that's solely due to how pervasive Windows is throughout schools and businesses, along with the fact that the vast majority of schools (at least in the US) teach students how to use Microsoft-based software like Office.
Even if I had to use a Macbook (which I would never), Pop would be installed onto it from day 1, or else I'd opt to not use the laptop all together. Even if the Macbook has superior hardware to another laptop, if the Macbook has to run macOS and the other laptop runs Pop!_OS, I'd use the other laptop.
This doesn't even touch on the fact that Linux is an open and free operating system (which again, this is a non-negotiable must-have), whereas macOS is heavily locked down and closed source. Nor does it touch on the fact that modern Linux can play nearly every Windows game with little to no issues and it generally just works 'out of the box' or needs a few applications installed, whereas the same cannot be said for macOS - there's much more work required within the terminal to achieve a lesser, often buggier result.
While I agree with you that the overall build quality of the Lemur Pro isn't as polished as a Macbook (which is why I opted for a Framework laptop recently, in fact) and other physical aspects of the machine like its touchpad, I disagree completely with your assessment of the operating systems. Pop!_OS on a M1 Macbook would be a better experience than macOS on a Macbook.