YouTube has just launched a new personalisation feature called handles, which — as you can guess from the name — lets each YouTube channel set up a unique handle. This lets others on the platform identify your channel more easily as well as simplify mentions.
While channel names already exist, handles use an @handle format and "are truly unique to each channel so creators can further establish their distinct presence and brand on YouTube." The chosen handle will appear on both the channel and Shorts to ensure that it is “instantly and consistently recognizable.”