Task Party is online co-working. You join a short live video session with a handful of other people and a host, bring one task you want to move forward, and work quietly alongside each other. Seeing other people focus makes it far easier to focus yourself - that is the whole idea.
Sessions are small (usually up to eight people), your camera is your choice, and mics are mostly muted so the room stays calm. Sessions run throughout the day, and you can leave any time.