Re: Merging Sims accounts
@luciferssibling Normally you could merge your two accounts and have access to all your content. However, the Steam version of Sims 4 is Windows-only, so you couldn't use any Steam-owned content on your Mac. In fact, having the Steam version of the base game on your account could prevent you from launching the EA version on your Mac at all. So I would suggest NOT merging your accounts just to avoid this issue.
The Steam/Windows restriction is by design, and there's no way around it other than somehow running Windows on your Mac.