Axis 1: EVM Compatibility (low to high)

Low: zkSync (Type 4 — Solidity compatible, not bytecode compatible) - Low-Medium: StarkNet (Type 4 — Cairo-native, EVM via transpilation/interpretation) - High: Polygon zkEVM (Type 2 — bytecode equivalent) - High: Scroll (Type 2 — bytecode equivalent, aspiring to Type 1)