Windows 7/Usage of Windows 7

Windows 7's market share is below 20% as Windows 10 has become the majority os. Windows 10 is more popular than 7 except in Turkmenistan.

Steam hardware survey for Windows 7 in January 2021 shows it at just 2.28%, meaning steam may drop support soon.

There is a glut of Windows 7 machines currently on ebay. You should stock up now before the retro tax occurs.