The decentralized factor of bitcoin is what makes bitcoin shine because there are lots of people that like to experience freedom. Bitcoin can help them in its simple ways. Lightning network is a fix to btc issues but it is sad that it's not being highlighted because many people still prefer newer altcoins compared with it.
Lightning network is still a new development to many people, also there's many thing need to improved. Such as not all wallet, exchanges, and platform using lightning network, complicated to set up, doesn't understand or trusting the second layer and so on. Let's say you want to trade on an exchange, but this exchange doesn't accept lightning network, you'll keep using on chain to send your coins. Not to mention even Taproot already completed, only few exchange accept Taproot address (bc1p...)