Web3 usually refers to internet and technology projects aimed at decentralization, such as cryptocurrency and NFTs.

Linux is trademarked too, and the mark is held by the Linux Foundation, for example."

That language sounds like TBD and Block might try the legal route again in the future.

Block and its products, including Cash App, Square, and TBD

Block

Source: TBD (1,2)

Via:TechCrunch