Using Linux as my main OS. And Linux runs older Win9x DirectDraw based games very well under WINE, than Windows itself. As for DOS based games, I'm using 86Box, as a way of "tinkering" with classic "systems" and Dosbox. Still have Windows installed in it's own partition, but rarely boot into it. Like maybe 3 or 4 times a year, mainly to keep it updated. The only rare instance Windows might be useful is with certain games or applications that need too much workarounds to run under WINE or simply wouldn't run - which are becoming rarer and rarer nowadays.
Changed my main OS to Linux when Windows 8 came out and when Windows 7 support ended.
Been using Arch for a very long time. After getting tired of the "rolling" release cycles and unexpected changes that come with constant "updates" I changed to something more solid.
Currently using Debian XFCE in my laptops and Fedora XFCE in my desktop.
Used Mint personally for sometime, and still using in one of the office dekstops, but I find Debian is much more....reliable. And Fedora is even better than Debian when it comes to running current Steam games, because it's using more current drivers.
The thing about Linux distros is, once you got all your applications, say LibreOffice and others and installed them and running well, you don't need to update, and can actually call it a day. You can forget about future upgrades too. Unless if you're playing current games like Steam games in Linux, which may require newer files or drivers, subscribed to an updating 3rd party software, or when you require to update your web browser to keep up with online changes. But being human beings, we're always curious to upgrade to the next version. Whether or not current condition is already working good.