I wonder if we have gotten to the point that a piece of software like MacOS Is so massive and deals with so many edge cases that it can’t actually be maintained

I wonder if we have gotten to the point that a piece of software like MacOS Is so massive and deals with so many edge cases that it can’t actually be maintained and improved. Every change will have weird gremlins for some odd extension 0.0001% of users have set. It seems like an impossible task.