Question??

Okay so I have two computers I play sims on a Mac Desktop and a Accer windows as we know origin for Mac is shutting down and we have to download EA but my computer no longer supports either (won't run the game because of the updated version) but I can't download ea on the Mac HELP what do I do cause I purchased sims 4 + packs throughout the years and I still have sims 3 help I don't wanna lose both games :(

But I know that my pc and Mac are different but is there a way to have what I own on PC???please help me