I looked at statistics, the usage went up around last half 2019 then tapered off. looks like not that terrribly popular although not died.
Good news, less people open public channels and expose suboptimal routing nodes :-)
IT seems stagnated. Are there benefits starting to weigh in?
Do you mean no technical improvements ? If so,
LOL.
I wonder if major wallets are supporting or starting to support LN?
Electrum