Motivation is important for your work. I would not be motivated by using some closed source, walled garden product from a company with business practices I don't like. Linux is absolutely good enough to get most development work done without issue. Even if Macs might be a slightly smoother experience in some areas.

I used to spend a lot of time to fiddle with Linux and my desktop in the past. You can do that if you want. But it's not necessary. Nowadays in 98% of the cases I say "good enough", in rare exceptions I might still use my freedom to fiddle and patch.