The dot on the right means "there are more notifications but we don't have space to show them all here".
The middle one is Samsung's "digital wellbeing" - a built-in feature for monitoring screen time and stuff like that.
The one on the left is some store or other. I can't remember which, but it's come up in previous question of this sort, and it definitely isn't a dating app (which I'm guessing might be the real question here, since (a) we get a lot of these questions and almost all of them are really asking whether their partner has a dating app on their phone, and (b) one of these has a heart symbol on it, which tends to be what triggers those questions).