I believe you can nwc for sending but just put the coinos.io lightning address for receiving if you want SATs to that wallet.
From memory receive and send nwc was for an alby hub connection to receive days back to alby, but might be wrong.
Discussion
Yeah just been looking through it on stacker news
They're migrating away from their native custodial wallet
If you Don't set up a non custodial wallet, you'll recieve fee credits