With Primal (the ios app), you can only use the integrated wallet. It’s fully KYC and it ties the info to your npub. Not sure why anyone would want to use that. If youmre using the web version, you can do NWC with it so Alby would work. I don’t know if you’re on ios or not.
The beauty of nostr is portability. You can take your data with you and use whichever client you like. I tried out multiple ones before finding one I preferred.
Your killnostr hashtag makes no sense here. Trying out multiple clients and seeing what is the best fit for you, or just for switching it up is the killer feature.