how many apps are supporting your product and is there a way for users to tell (that you know of)?
I tried setting it up with Primal a couple days ago but it didn't work. It's also possible I did something wrong too lol.
Discussion
Primal doesn't support amber yet.
Native apps there's amethyst, Yana, voyage, yakihonne, 0xchat.
Web there's noStrudel and noogle.lol
If the application supports nip 46 it also supports amber. Nip 46 is usually called bunker or nostr connect
One example of application that supports nip 46 is https://wikifreedia.xyz/