The Sims + The Sims 2 Legacy for Mac ??

No. EA licensed Aspyr to do the native Mac port. Unfortunately, EA refused to extend the license to include the last 2 EPs, and several SPs. Believe me, Aspyr tried. So Mac users only have the Super Collection, which has always been available in the Mac app store, and can still be purchased there. 

We are still stuck with a separate Windows machine or a Windows partition on our Macs. It would be amazing if they ported it over, but it's incredibly unlikely.

The Mac version already does most of what this new release is doing for Windows! It is already compatible with newer Mac hardware, although currently it runs in Rosetta. I am hoping they port it to the M series chips. It has long been the top-selling game in the app store. What would actually make a difference to the community is for EA to finally let Aspyr port the rest of the EPs and SPs to the Mac. It can be hard, even impossible, to find old, Bon Voyage versions of the mods you want to use. Porting the rest of the game would really benefit both the Mac and Windows players. 

Jakub_Svatuska_​ EA has not announced anything about a Mac release of The Sims 1 and 2, they are only available on Windows. Hopefully one day it becomes available on Mac as well.

If you want to play these on an Apple Silicon Mac, you could try Parallels, but keep in mind that it is not officially supported, so they may have issues. I believe Parallels has a free trial available, so if you have time and patience, you can give it a try.

On an Intel Mac you can try using Bootcamp, which will let you run Windows side by side with macOS.

Alternatively, The Sims 2 Super Collection is available on Mac App Store; I've only tested it for a short time, but it seems stable enough on a newer Mac, though it is missing some packs.