How does Cardano dual layer architecture compare to ETH 2.0 layer 2 solutions and side chains

I've been reading about Cardano and trying to find any positives it would (will) have when compared to an ideal and final ETH 2.0 implementation.

The main focus of the comparisons I found online is about their double layer architecture, one to finalize simple transactions, and one to actually compute them (with smart contracts). These would respectively be "Cardano Settlement Layer (CSL)" and "Cardano Computational Layer (CCL)".

I don't see how this would have any advantages over ETH 2.0 layer 2 solutions or its side chains, or any other scalability method documented here: https://ethereum.org/en/developers/docs/scaling/

Please don't just sh*t on Cardano because this is an ETH sub, let's build a constructive comparison.