Trudeax ordered it not Biden.

“I ordered the take down of an unidentified object that violated Canadian airspace,” Mr. Trudeau said in a statement posted on Twitter. He said an American F-22 with the North American Aerospace Defense Command, which is operated jointly by the United States and Canada, downed the object over the Yukon Territory.
NYT

I expected the UAP name change would have been used but it has not.
Perhaps it is a Navy vs Airforce kerfuffle.