Personally I gave up on Linux laptops due to the amazing battery life m series has and the driver issues. Maybe when we get better arm laptop Linux support it might be a different story
from just reading the post sounds like a shit situation for him and there is blame on the linux kernel maintainers for not handling it well. Especially if the claim about them going behind his back and shit talking him is true.
What i will say, Is that i get the impression that the he is quite sensitive and takes things too personally which is a death wish online. People are savage online and if you don't have thick skin then they will destroy you. Not justifying it but it is what it is
Either way hope all goes well for him. Sad to see this happen i bought a m2 mac because of linux support :(