Have you read this? It basically explains how in order to scale Bitcoin, we will eventually need Lightning factories and custodial solutions because on-chain transactions and the liquidity needed to run a lightning channel will be so high. There is a scaling issue, and I believe drivechains are the best option for future scaling and privacy.
https://delvingbitcoin.org/t/thoughts-on-scaling-and-consensus-changes-2023/32