How Has the Transition to Proof-of-Stake (PoS) Changed MEV Dynamics?

In Proof-of-Stake (PoS), the ability to extract MEV shifts from miners to validators (or block proposers). While the fundamental MEV extraction strategies (like front-running) remain, PoS introduces the concept of Proposer-Builder Separation (PBS).

This separates the role of building the block (which can optimize MEV) from proposing the block (which validates it), aiming to decentralize MEV extraction and reduce the validator's direct power to front-run.