I think you are forced to use the emotes from the instance you use, lemmygrad stole seized some emotes from us but they cant use not our full emote list just the ones they added
nothing stopping you from manually copying the markdown and using them, but they won't be as easily browsable from your home instance, no. For federation purposes emoji are just embedded images. (there's more to it than that, slightly, locally-present custom emojis will render using different CSS so that they aren't massive, but that currently doesn't work for federated emojis)
I think you are forced to use the emotes from the instance you use, lemmygrad
stoleseized some emotes from us but they cant use not our full emote list just the ones they addedour emotes comrade
nothing stopping you from manually copying the markdown and using them, but they won't be as easily browsable from your home instance, no. For federation purposes emoji are just embedded images. (there's more to it than that, slightly, locally-present custom emojis will render using different CSS so that they aren't massive, but that currently doesn't work for federated emojis)