Polygon is a sidechain and isn't what most would consider an L2 these days. They do have L2 rollups in the works like Polygon Hermez which has $0.25 transactio

Polygon is a sidechain and isn't what most would consider an L2 these days. They do have L2 rollups in the works like Polygon Hermez which has $0.25 transaction fee right now.