Thank you for that interesting screenshot and the Blockspace article! That's indeed the impression I'm getting too, that most "L2s" are more or less traditional shitcoins with some wBTC-style bridging, but few have really mechanisms qualifying them as a "sidechain" or "rollup" with a convincing, decentralized 2-way-peg.
I can find only few of them useful but I would never keep any large amounts long term in any of bitcoin sidechains.
It's funny that some people are promoting Lightning Network so much but only 5,122 BTC is locked so far, that is nothing compared to 21 million.
I won't even get into less know sidechains that are making a bunch of false promises.
Instead of using sidechains, it would be much more interesting with drivechain.info.