Affirmative. You should try it. All kinds of transactions are becoming fast and private.

It does! I recently sent my first couple of sats (5000) to a business in my country the day they started accepting bitcoin to support their initiative because there is a non-profit near their shop that supports impoverished children with bitcoin donations that they receive and they previously couldn't buy at that shop. The fee was only 5 sats and I could even send them a welcome message, which was cool

There's even been sub-satoshi payments. The challenge is just getting liquidity for your node.

You just did a 1 sat tx posting this check also here examples

Yes

I opened a channel with phoenix wallet a year ago. since then I have made thousands of transactions, with only one transaction as footprint on the blockchain. from 1 sat to 0.01 btc.

Yes it does, and it works very well.

It does faster than Fiat payment

If you post a 1 sat invoice here, I will pay it (if someone else don't get to it first) to prove a point.

Sure does. I regularly top up my phone for 0.5 to 2 usd via lightning.