Spoilers for the canon Darth Vader comic series:
The clone biochips in canon are dumb. I’ve just read the Darth Vader comic and in it a Jedi uses Order 66 to make a clone squad turn on their Inquisitor leaders because they’re technically still in the list of Jedi. He just says “execute Order 66” and the clones start gunning down the Inquisitors. What the hell is that? Why is “Order 66” a magic spell that anyone can use now instead of only the Chancellor himself?