Steam Sports Fest has officially begun (I'm a little late on that) and it runs until May 22nd, so you've got plenty of time to check it out. During this time there are demos, discounts, free Steam stickers each day and more.
What actually counts as a sport when it comes to games is a pretty wide genre, that said sports as a whole is a pretty big net so no doubt there's something you'll be able to find.
Valve continue doing their funny little trailers now too:
Although they do the more serious business trailers as well:
If you scroll down the special sale page, there will be all sorts of filters you can apply. It's pretty slim pickings if you're only going for Native Linux games though. For Steam Deck and desktop Linux with Proton, there's loads of good picks that work out of the box. Admittedly sporting games aren't exactly my jam though.
Have you picked up anything good?