I can use a bunch of different wallets, no problem. The issue is with the app not allowing me to ‘activate’ one. I can’t link or select an existing wallet and I cannot make a new one from Canada. 
Discussion
Idk about primal. In nostrudel, you don't need to "link" the wallet in any way, you just make your address in zeus, paste it into nostrudel, and there you go. I made an error in my previous reply, zeus if fully self-custody, it is a non-custodial wallet, you hold the keys.