EIP-7805 Fork-Choice Inclusion Lists (FOCIL) as a candidate for Glamsterdam

Fork-Choice Inclusion Lists (FOCIL, EIP-7805) are proposed as a headliner for Glamsterdam, with the case that they would let validators enforce transaction inclusion and reduce builder censorship on Ethereum. The article says more than 80% of blocks are produced by two builders who can unilaterally include or exclude transactions, citing censorship.pics data. It states that FOCIL has been implemented by six client teams and runs on a local devnet with Prysm, Lodestar, Teku and Geth, with spec testing underway. The article also says that, if the two dominant builders excluded a transaction, users would face delays averaging about 7 blocks (roughly 84 seconds), which FOCIL would prevent unless the block is full.