IF (and that's a big if) that's true then it means they can factorize number into primes with this quantum computer and break encryption.
Not sure what you mean by the "that" when you say "if that's true", but there is nothing in this thread or by google that is anywhere close to breaking encryption.
Willow has 100
Decryption with quantum computers is still likely decades away, as others have pointed out.
To be specific, the best know quantum factoring did 15 = 3x5, and when 35 was not able to be factored when attempted. Most experimental demonstrations have stopped in recent years due to how pointless it currently is.