My question is: when sending a bundle through Flashbots, does it automatically send the priority fees to the miner (hence explaining the transfer to Titan Builder)?
Yeah, the priority fees and coinbase transfer are sent to the fee recipient of the block - for which, the builder can choose to put their own address (in this case why you see Titan’s address) and then transfer the payout to validator later in the end of the block as a separate transaction; or they can decide to put validator’s address as the recipient directly otherwise.
@sui414@0xDxice so, is that means: someone just added in smart contract internal transfer function for sending directly to Titan Builder or how it works?
Yes, you are right. In the banana smart contract for example, it checks if the swap confirms and then, send ETH to the builder(block.coinbase) using internal transfer.