The Wizards get a lot for a player they have no use or desire for. The Wizards also get picks for swallowing some debt.
The Mavs get off their old players by saving over $118.5M over 2 years in exchange for under $56.8 in 1 year... with a player that might help or be tradable at the trade deadline in Butler.
The Warriors also sign LeBron (and maybe get Bronny) and a few Summer League / 2-way players. GS will likely go slightly above the 2nd Apron, but this looks like it would be worth it.