@gamingonlinux there's a lot of good answers, but I'm going to break rank and say: Vulcan.

This graphics API (and every subsequent project to translate other graphics stacks to it) has enabled performance and cross compatibility that we have not seen in a long time (A mobile phone ARM chip running full desktop x86 games? Liberating thousands of Windows games to run on MacOS? Nvidia GPUs actually having good open source drivers on Linux? Unthinkable until now).

Thank you Kronos Group, CodeWeavers, and Valve 🙏