Two people holding hands. It stands for friendship, partnership, or togetherness, without saying anything about gender.
People use it for best friends, couples, and allies, and in messages about unity and support. Each person can take a separate skin tone, so it can show a mixed pair. It reads warm but not strictly romantic.
Facts
People holding hands ๐งโ๐คโ๐ง is an emoji in the people and body category, under family. It became part of the emoji standard in Emoji 12.0, released in 2019. It is a sequence that joins ๐ง person, ๐ค handshake, and ๐ง person. Devices that do not know the sequence show those emoji side by side. It comes in 25 skin tone combinations, one tone for each person. On GitHub, Slack and other apps you can type it as :people_holding_hands:. People also look for it with words like โbaeโ, โbestieโ, โbffโ, or โcoupleโ.