An update to Team Fortress 2 has been released. The update will be applied automatically when you restart Team Fortress 2. The major changes include: Added 64-bit support for Windows/Linux client and server Should include performance improvements for most users Bugs can be reported here: Fixed an ex...
Valve still makes money off TF2 through passive financialization in the game's cosmetic/sidegrade microtransactions. Having a snappy feel to an old game is important. I would rightfully expect a game from 2007 to have perfect performance even if I have other stuff open.
It is one of the most played games on Steam: https://store.steampowered.com/charts/mostplayed (make sure to sort by daily players, TF2's regional/timezone distribution is different from other games)