I think it's a good for others who don't have experience with LN to try it out for the first time. And if you are going to transact with others, it should be in LN until the network congestion is gone.
You are right, I also never used the Off-chain mechanism (LN) maybe I should also give it a try.
You're too late to start using LN because if you make a transaction today with the current network you still need to pay a high transaction fee before you can have a channel.
It seems the mempool.space is down I can't access the site it might be under DDOS attack or the site already reach the hosting limit because it stuck at "error time out".