the capacity of the Bitcoin Lightning Network is almost 4,000 BTC already.
most of that is bitfinex locking up value. not for current users but the potential of future users.. its basically setting up liquidity for a "if future" not any current stat of current utility.
also comparing bitcoin adoption. to things like
"custodian users"
"subnetwork users"
"sidechain users" is not true bitcoin adoption
if people do not experience the self custody life of actually having funds on their bitcoin network key, where they can move funds without a channel partner or middleman agreement. or have to pay the network fee's and see their funds confirmed and settled in the immutable ledger of the bitcoin network.. they are not actually using bitcoin
balances on websites, other networks: lbtc, wbtc, msat are not bitcoin
bitcoin never leave the bitcoin network. and that the beauty and security of it