I remember that IBM was famously missing the trend in the late 80s/90s and couldn't understand why regular consumers would ever want to buy a PC. It's why they gave the PC clone market away, never seriously approached their OS/2 thing, and never really marketed directly to anybody except businesses.

Microsoft really pushed the idea that regular people needed a home PC which laid the foundation for so many people already having the hardware in place to jump on the internet as soon as it became accessible.

For a brief moment it looked like a toss up between Microsoft IIS webservers serving up .asp files (or coldfusion .cf - RIP) vs Apache pushing CGI but in the end the Linux solution was more baked and flexible when it was time to launch and scale an internet startup in that era.

Somebody else would have done what Microsoft did for sure, had they not been there, and I suppose we could be paying AT&T for Unix licenses these days too. But yeah, ultimately both Gates and Torvalds were right in terms of operating systems and well timed.