Windows had the lead until about 15yrs ago when suddenly iPhone arrived and it propelled apple/Mac (and by association Linux) back into the game.
in recent years the rise in popularity of CLI, microservices (APIs for everything) and remote working/collaborating is indicative of a market shift, away from monolithic, centralized systems and providers (Cloud aside).
Security + Privacy are more so becoming inseparable, for users all around (private, business, orgs, gov).
I particularly like their concept of user-space servers and translators [1] [2]
[1] A translator is simply a normal program acting as an object server and participating in the Hurd's distributed virtual file system.
[2] https://www.gnu.org/software/hurd/hurd/documentation/transla...