Linux is doing rather well. Not a business but the people building it have eaten's microsft's server market pretty well. That's what happens when you let engineers do their jobs.
I know of a few companies around the uk, one is mythic beasts, a hosting company. Gitlab is also successful, canonical too. Thing is it doesnt matter. If a client needs me onsite to brainstorm then i dont mind it. But there needs to be a valid reason and not just because of an insecure managed’s lack of skill in using modern tech, or worse, to fill voids in people’s lives. Focused work is best done in a quiet place, and for some that’s their own home and their own office. Being surrounded by things you like and a setting you like makes you more productive.