King + 2 Bishops + Knight vs King + 1 Rook is a tablebase win but I believe it is extremely hard.
K + 2 Knights + Bishop vs King + 1 Rook is also a win but much harder.
K + 2 Knights + Bishop vs King + 1 Rook is not a win. wikipedia says it is a draw because the defender can simply attack the bishop with the rook and threaten to sac the rook, as 2 knights vs king is a draw
Never believe Wikipaedia. The tablebase says over 20% of positions are won by White. (So don't believe @EndgameEnthusiast2357 either.)
Whether K + 2 Knights + Bishop vs King + 1 Rook is a win depends on where the pieces are.
From the tablebase:
an example of a position where White wins
an example of a position where Black wins
From me:
a simpler example of a position where Black wins
...
That 20% are those where is possible to capture the rook.
K+Pawn vs K+Rook is also winning in 9.1%