Is it good UX that in Windows 7 & 8 the windows of the same application are automatically grouped into one button?

1. Is it still OK to use Windows 7?
2. Is Windows 7 smoother than Windows 10?
3. Is it worth using Windows 7 in 2022?
4. What type of user interface is Windows 7?

Is it still OK to use Windows 7?

“While you could continue to use your PC running Windows 7, without continued software and security updates, it will be at greater risk for viruses and malware. “Going forward, the best way for you to stay secure is on Windows 10. And the best way to experience Windows 10 is on a new PC.

Is Windows 7 smoother than Windows 10?

In fact, there's a slight drop in performance on average, with Windows 10 tending to be about 0.5% slower than Windows 7, particularly with older games – Crysis 3, for instance – although there are some instances where the roles are reversed.

Is it worth using Windows 7 in 2022?

Yes you can, but as the support is dropped by Microsoft. You will not get any updates (security patch).

What type of user interface is Windows 7?

Windows 7 is built on the Windows Vista kernel and was intended to be an update to the Vista OS. It uses the same Aero user interface (UI) that debuted in Windows Vista.