ok now I see. after activating floating notifications and selecting bubbles, then I had to go to the in-app settings of both Google messages and Samsung messages, and select "All" for bubble notifications.
i turned this setting off. after using it for Two days and now , i can't get any notification pop us, i just hear the sound and when i glance to see what it is noting shows up. Idk what u would call it. for example when u get a Text message it pops up on phone and u can instantly reply from there. for apps like Whatsapp Fb or IG.