Forum Moderators: Robert Charlton & goodroi
emojis have been supported in browsers since 2015It's less about browser support than about the operating system as a whole. Normal browsers have supported font substitution since approximately 1997, and That One Browser since at least the week before last, but this is no help if a lot of your users are on elderly computers that don't happen to have any of the emoji fonts installed in the first place. And only you know your users. At a minimum, check periodically on the oldest Android you can find, and make sure there aren't any unexpected gaps. If, as your posts suggests, most people are now using recent smartphones, then go for it.
One advantage to using emojis is that they do show up in the search results which tends to draw the eye towards the listing.