Ok, so npubs are your account key, if you make a new npub on snort it is a new account, if you want to use different clients but have the same account you need you use the same npub and private key… for snort use Alby to do your private key management, it is not safu to put your key in directly to snort in the browser…
Also I don’t think 2 pub keys can be merged, I think you need to pick one account