EIP-1559 changes how gas fees are paid to miners. Specifically, with EIP-1559 users will pay a base fee + tip where the base fee will be burned (i.e. the miner does not get it) and the tip is paid to miners when congestion is high to incentivize inclusion. As most people know, EIP-1559 doesn’t solve this whole “fees are high” thing. It does make fees more predictable and works better than the first price auction (FPA). However, when many people try to send their Txs and the capacity is limited, the most valuable Tx will outbid the less valuable (i.e. pay a higher fee). The EGL community helps to collectively signal what capacity (gas limit) they think is right. More importantly, EIP-1559 completely removes the incentive for pools to increase the gas limit, even if everyone agrees it is completely safe. Why should they? Producing larger blocks would only increase their risk of uncle blocks, but would hardly increase their revenues (since fees are burned).