For the web this is great. But the feeling that for every app I need to put in my nsec feels weird.

You should never give your nsec to anyone or any site asking for it. That's just begging a bad actor to come along, have you plug your nsec into their site, then they can do whatever nefarious deeds they want with your nostr identity. When using the getAlby extension, it holds your nsec in the extension itself and only ever signs nostr events using that nsec-- it never directly shares it anywhere. It makes it so you can just click a button to log into many sites that offer Lightning logins with just a click of a button.

For the web I’m using nos2x. But I’m more talking about Damus, primal and others native apps

I've not used nos2x since trying it once on like it's day 0. I quickly gave up on it then. Hopefully it's gotten much better by now.

I think it still looks the same 😂 I love how “not styled” and simple it is

This is what I mean. It feels wrong.