Understanding L2 dynamics in Ethereum

L2s allow new builders to benefit from the developer and user network effects of EVM while capturing better economics and more control of the UX than being on L1s. The main benefit to ETH is distributing it as a credibly neutral store of value to more users and companies. Coinbase is now stacking ETH from Base and new Base apps introduce new people to ETH. Win, win.

An added benefit for ETH can be burnt fees, but an open question is how much should L2s pay to settle on L1?

Since Pectra, blobs have not been full and so the burn from blobs has been nonexistent. L2s only pay if transactions within blobs go above a threshold which hasn’t been reached. There’s an argument to keep it that way for now, but there’s also an argument for a flat fee to be introduced so that more fees are burnt for the service the L1 is providing today.

Curious how people think blob fee structure for L2s should play out?