Thats right, reddit is removing its horrible implementation of custom emojis, in its ever ongoing journey to lose all feature advantages it has over lemmy. Now we only need them to remove post tags and user flairs, and lemmy will be superior in every single way.
They are really deadset on removing every single community customisation out there!
It’ll happen when instance owners decide to do so. But I don’t see it happening right now. But I get the feel that most would like to get away from the lemmy devs long term. But for now they all seem to favour lemmy, so it is for them to decide when its ready.