Until this moment I replied to your post that the Cardano coin was still above Polygon, the Cardano ranking was still at number 8 and the Polygon Matic coin was at number 15.
In fact, it has drifted away from the Cardano coin, perhaps Polygon is looking for the latest innovations to be able to overtake the Cardano coin, for example in terms of the various features it provides.
I prefer the latest project from the Polygon Matic coin, zkEVM, because it has a system to reduce gas costs from Ethereum L1 and until now there are still many fans of Ethereum L2 (Arbitrum, Optimist, Aptos, zkSync, Starknet).