Yeah, I use nos2x, apparently could have been using Alby the whole time!

Nos2x works too in Kiwi. Can authorize one page at a time, for 5 minutes or forever (as long as you have tab open)

This is where nostr really shines. Not in full app Twitter clones, but micro apps that you can bring your npub identity with you. And don't have to keep on signing in. Your browser signs for you. This is the kind of thing Web3 tried to sell you an NFT to give you access to places online. (Tiketmaster is doing concert tickets and metaverse concert tickets.) But nope. Just need cryptograpic keys, Don't need a token.