It's good while the software you run on it still supports that OS, for example the big one would be anything build upon Chromium (or electron) framework which deprecated win7 support when Microsoft ended ESU support (EOL +3 years).
its compability its one of the best
After all no game from >10 years ago runs any longer.
stop lying, I can run original doom, sim city and red alert on my windows 10
You just need to click run compability as windows xxx then you can run it