The heart with a circle thing looks like the "digital wellbeing" icon - a tool to track stuff like how much time you spend looking at the screen. What you might do to attach that to all of these icons I don't know (but I don't use One Ui Home, the stock Samsung launcher, so it may be something that that launcher does when you have some digital wellbeing option turned on).
I guess the other heart (pink in top corner) is some theme you've applied?