I guess a solution for Telegram could be to design their own, standard, emoji set. So far they were using the apple one across platforms, just to avoid "emoji

I guess a solution for Telegram could be to design their own, standard, emoji set. So far they were using the apple one across platforms, just to avoid "emoji misunderstandings" (when the emoji design is different, also the meaning can be interpreted differently - that's why is better for a common chat to use the same set). Given the quality of Telegram UI and designers, I am sure they will do a very very good job.