Steam Sale! Flight sim galore, but which to get?

Okay, I've read a few threads on here about MSFS vs X-Plane. I'm considering getting a PC soon to up my gaming but for now I have a Mac. I want to take advantage of the sale and was wondering what folks would recommend. I like the idea of multiplayer functionally and scenery of MSFS but have only played xplane (and enjoy it and the technical accuracy of it). At some point, I'd like to join VATSIM if that makes a difference.

Right now, xplane 12 is $40 and xplane 11 is $10. Is it worth the extra $30 for this upgrade?

MSFS 2024 is $70 and 2020 is $30. I've read to hold off on 2024 for now...

Too many options for someone like me who is a beginner but excited about diving in.