Fair enough, no shame in that. Unicode is a set of characters encoded on 16 to 32 bits beyond the 8-bit ANSI character set. It's most famous for including the emoji section you can use in social media posts like 🙂🐈🎁.

Windows and other OSes provide visual Emoji pickers since these characters are hardly typeable on a regular keyboard. However, Windows shows the U+2714 (HEAVY CHECK MARK) U+FE0F (VARIATION SELECTOR-16) ✔️ in the visual emoji picker (that you can bring up with Win + .) but when you click on it, surprise, it just adds U+2714 (HEAVY CHECK MARK) ✔ to the text box you were editing.