Ethan Lee, the developer responsible for the XNA reimplementation FNA along with around 50 game ports to Linux and macOS has announced the sunsetting of future macOS ports with a big update to a bunch of existing games.
Don't know who Ethan Lee is? You've probably played plenty of games either directly ported by them or running on tech created / maintained by them including: Streets of Rage 4, Superliminal, FEZ, Transistor, Rogue Legacy, Salt and Sanctuary, Owlboy and loads more.
Writing on their IcculusFinger profile page, Lee wrote a few paragraphs about a little history before diving into the current state of Apple products mentioning "I've put it off for as long as I could, but after looking at Apple's trajectory vs. my own infrastructure for Mac support, it's looking like 2021 is the year that I have to say goodbye to the Mac as a primary target.".
The good news for Linux fans? According to Lee, "New games, however, will primarily be Linux (and Windows, if applicable) only.". It also seems quite interesting that console releases have been opening up the gates for Linux ports according to Lee too. This is also backwards to what we often see with Linux support removed (hi Rocket League), so it feels a little odd.
As for existing ports? Lee went ahead and updated over 30 currently live with the latest tech for both macOS and Linux, so you should see the games ported all continue running smoothly in future.
Hopefully Ethan Lee will have many more Linux ports planned for 2021 and beyond.
I also found the bit about drivers interesting, with how users and developers can grab a RenderDoc capture and post it to the Linux Mesa driver issue tracker when encountering a driver problem and sometimes get a response and a fix in the same day - shows how awesome open source can be, compared with Apple "reporting bugs to Apple when you're not rich is like pulling teeth with boxing gloves".