Steve Ballmer was an underrated CEO

No he wasn’t haha. The only thing he did was slide the company sideways via pre existing illegal monopoly. In fact, they lost most of their monopoly under his supervision . At no point did the quality of their products improve, and that’s evidenced with this year’s massive massive Windows outage, or Garmins mega ransomware, out a hundred other people who’ve been hacked via Windows.

If you’re running Windows for anything, it’s only a matter of when, not if.

Ballmer's tenure started with XP and eventually gave us Windows 7. Nadella gave us 10 and 11. Though 10 was largely developed under Ballmer before its initial launch, it's been under Nadella's stewardship ever since. I'll take Ballmer, thanks.

Ballmer also gave us the maligned Windows Vista and Windows 8. Microsoft has also been way more open source friendly during Nadella's tenure, whereas Ballmer was openly hostile to FOSS. I'll take Nadella, thanks (although he should fix his user-hostile spyware).