In my experience, many business applications now run on the Web or are being upgraded to be. Where I work Windows pcs endure only for those who have to do technical drawing, most terminals are Ubuntu updated by ansible scripts and connected to an active directory domain running on Samba. The few PCs with Windows are slowly disappearing as hardware is upgraded ( medium-sized company with about sixty PCs ). There are also a couple of Mac’s used by in-house developers/IT.