[morphios]

Oh, no...
They can calm down a bit with releasing new versions and take the time to fix the broken versions.
I'm not saying this is the case, it just feels like they, halfway through the development of one version, give up and release a next version.

Microsoft said they were stopping at Windows 10 - they'd only be releasing upgraded builds on that version.

I was surprised to read Windows 11 was released, and now they're planning on Windows 12. I've read from a reliable source that they've started working on It last month.

They won't stop soon, well, not in my opinion.
Windows 7 was the successor after XP. It was the first release where Microsoft didn't build on top of DOS but created a new OS entirely where DOS is an addition instead of the core.
They obviously didn't want people to stay on 7 and provided free, time limited upgrades to Windows 10 while stopping support on Windows 7 to create a sense of urgency (and just not telling everyone that Windows 7 keys work just fine on Windows 10 installations).
While Windows 10 offers a lot, it is still lacking and feels broken compared to Windows 7.
Since history will just repeat itself, they will continue to create new versions until they get lucky with a stable, visually pleasing, not resource hungry version. Then only we can hope for them to settle into that for just about three service packs before they get bored again, and break it all over again just to repeat the process.