How Do Proof-of-Stake (PoS) Finality Mechanisms Differ from Proof-of-Work (PoW) in Terms of MEV?

In PoW, finality is probabilistic, depending on the longest chain rule, which allows for temporary chain reorganizations and more opportunities for miners to execute MEV. PoS systems often have 'economic finality' where a transaction is finalized after a set number of attestations, making reorgs prohibitively expensive and reducing the window for MEV extraction after the initial proposal.