Missing "Join Realm" button.

i dont know if this is a bug but on my samsung galaxy a31's minecraft friends section doesnt have a join realm button next to add friend button so i have no idea how to join my friends realm and where do i enter the code but i do see my 30 day free trial realm world so if this is a bug please fix it and if its not then please tell me how else do i join in the comments (im in 1.16.40 so its not a beta)