Any research or data analysis that shows how centralized Polygon really is?

A standard critique is "it's a centralized sidechain" but I haven't seen anything published that shows how it is more centralized vs other L2s

IMO the easiest way to think about this is that choosing Polygon PoS is the same as choosing any other PoS L1, where you're relying on the security of the chain's validator set. 

This is a very different security model than an L2 which inherits the security of its base layer (e.g. Ethereum L1)

@base builder #001; onchain cities w/ OAK & city3

makes sense re: security but what about decentralization?

same as security - L2s inherit the decentralization properties of their base layer whereas L1s have their own decentralization properties

e.g. Optimism/Arbitrum have the same censorship resistance guarantees as Ethereum whereas Polygon PoS censorship resistance is determined by its validator set