I can see why some people would want a toggle, but defaulting to Apple emoji seems like the obviously correct thing to do. I suspect a major reason why HNers hate emoji in general is because they see different images from what gen-z sees and therefore have a hard time understanding jokes that rely on how these images look.
>>NavinF+(OP)
This used to be a problem but has been largely solved for the last 3-5 years. Emoji while slightly different looking are tonally consistent across devices.