This is why I say the PC was doomed to win. IBM established the PC and then immediately lost control of it because all its components except the BIOS were COTS, so the PC ecosystem became this mishmash of companies, each contributing to and extending the platform as a whole. Any one of them can rise and fall and the ecosystem as a whole would keep on going.

Commodore was mismanaged and died. Apple was mismanaged and nearly died. A proprietary computer ecosystem controlled by a single company is at risk of being run into the ground by incompetent management or sheer bloody economics. That's why the PC and not the Amiga, Old World Mac, or Atari ST became the basis of modern computing.