How Flashbots prioritize the bundles with same nonce?

Im researching the scenario when I have to outrun the hacker, who is draining the compromised pkey.

So when its time to make a tx, he send the bundle to Flashbots. But also I send the bundle with the same nonce.

Are there any established rules, how Flashbots prioritize the bundles with the same nonces in some outgoing txs?

Based on my tests, its always pick something from the middle. Really didnt care about maxPriority gas.

Question 1: So its totally random?
Question 2: Any ways to prioritize the bundles going from the same pkey and nonce?

Screenshots showing the bundles with different gas, and same nonces, sent to the same target block.