It is necessary to make discussion of this cost and around 781 channels are being used on the network. Although some people are still skeptical because some bug reports have been reported to the developers. These people are excited about this off-chain scaling feature.
781 Channels and 3.6 BTC
This is the development of LN and its main test is increasing. These lightning network topics have now been transferred from BTC TestNet using real BTC to test LN of currency on the mainnet. Those who believe that this will help to scale the Bitcoin core (BTC) protocol, in the last few weeks, those people have been discussing about the Lightning Network (LN).
Source - https://news.bitcoin.com/lightning-and-mainnet-a-look-at-the-protocols-hype-trials-and-error/