Well, for what little help I'll probably be, you're welcome 🙂
You have Origin, but do you have an EA Play account purchased through Origin (i.e. NOT your Game Pass for PC version)? It sounds like you don't. So yeah, Playpass games will not be shown there. The Game Pass version of EA Play only works on the EA Desktop client. So I'll offer two possible solutions, neither that great:
1) Purchase 1 month of EA Play on Origin store. $4.99. Then you should be able to install ME3 (through "normal" EA Play on Origin), and the DLC should appear in the "Extra Content" tab. After that expires, since it is in your DLC install folder, it should work from then on via the EA Desktop app and your game pass account. Now that's a lot of "shoulds", so caveat emptor.
2) Purchase ME3 (currently $17.99) on Origin. Then access the DLC as above. You might be able to get a quick refund, but no guarantees. And it is subject to the same shoulds as above. So, obviously, not really a good approach. But thought I'd throw it out there.
Also, look for a DM
Since you resurrected this old thread and my post is just above yours, I feel the need to update the info in mine for those looking for a solution to the (somewhat related) "I can't get the DLC on GamePass/EA Desktop" issue. Turns out, there's apparently a rather simple workaround.
See this thread:
