You want the people looking for the Knives Out sequel to know that Glass Onion is the Knives Out sequel.
As Johnson says, it makes sense that Netflix would want to include Knives Out in the title of Glass Onion because the name of the movie has more name recognition with the general public that the character played by Daniel Craig, Benoit Blanc.
We likely won’t know for sure what subtitle the next Benoit Blanc movie has until promotion for the movie begins.
Now two of the films have been released, and the sequel, Glass Onion, was just as big a hit as the first.