It pops up more like an extension; it also supports native apps as well as web apps. You can also specify event kinds permissions like extensions.
so just to clarify it won’t allow me and let’s say 9 others to handle the same nsec in a trustless way
No, it runs locally on device just for apps installed on your phone.
Ahhh okay okay yeah I guess there isn’t a true alternative to nsecbunker yet
I think I misunderstood your requirements. If you also want to share your account with others, it's not for you. Amber is only for Android. You will be able to log into installed apps and websites on your phone. I used to use nsecbunber for the same purpose. But if you want to share an account with someone else, it's not the replacement for that.