As a cyber security professional and penetration tester, I use Linux for my personal machine, and two of my corp machines. My company also issues one windows laptop.
All of my important stuff goes on the Linux server. But I seriously hope that corporations continue to use windows. It keeps me employed and makes my job far easier.
I have he same hope, though for a different reason.
As a Linux professional, people like me are limited in supply. It helps my bottom line.