As for the Lightning network... Did you read
this article saying that there is more Bitcoin on the Ethereum network (WBTC - wrapped BTC) than there is on the Lightning network? I think that Lightning network is far far far from being adopted.
Sure. It doesn't really mean that much though when talking about retail transactions though, as even the Ethereum blockchain is also susceptible to being congested. Remember the crypto kitties days? Yep. The network pretty much slowed down to a halt. Wrapped BTC are mostly used for staking and such, not really for "coffee transactions" so I don't really think it's right to compare WBTC to Lightning.
I agree that Lightning is not there yet though.
I'm just saying that it's funny that more Bitcoin is locked up in the Ethereum network than there is BTC on the Lightning network. Plus, article says that there is only 1000 BTC in the LN! That's saying how low adoption of the Lightning network is...