[FEATURE] Distribute fees earned through `feeRecipient` with delegators automatically

[koenmtb1]

Problem Statement

Any fees earned by a sequencer operator are currently sent to an L2 address, set through feeRecipient. But if the given sequencer is operated by a sequencer operator with delegated funds, that user would expect to get their fair share of earned feeRecipient fees.
But also as an operator I don't want to manage the process of sending those fees to L1, and then sending it to the correct splits address manually.

Proposed Solution

A solution could be pooling the feeRecipient into one address per operator, having the node automatically send it to L1 and splitting it equally across all splits contracts. This is still tough given the accounting that will have to be done for when certain delegators delegated / undelegated.

Example Use Case

No response

Alternative Solutions

No response

Additional Context

No response

[just-mitch]

You misunderstand feeRecipient. As you've noted, it is an L2 address. Transactions are not obliged to make use of them at all, and it can be seen as a separate priority fee. A better name might have been optionalL2TipRecipient. coinbase is the fee recipient on L1 of the actual transaction fees.

[just-mitch]

To elaborate on how this is just "future proofing" at this point, the only way you'd know as a sequencer that you received funds in this way is if you inspected the public data tree as a result of executing the transaction to see that you received funds, and then adjusted your transaction inclusion/ordering based on it, which is not implemented in the node. If its okay with you, I'd like to mark this as won't fix for now.

[koenmtb1]

I think the point stands that "As a delegator I'd like to receive my share of all rewards" which includes these tips. On Ethereum this is anywhere from 10% to 20% of what a validator earns.