Earlier quoted context omitted.
This doesn't represent Lightning network, which is used for smaller, quicker transactions later synced onto the main Bitcoin chain by transferring only the differences between the nodes to save on transaction fees.
I didn't know LN was a real thing I could use. What app or whatever do I get for a wallet? And what places or sites accept LN? Or it works with any btc transaction?
The simplest way is to use the Eclair wallet on Android.
The receiver needs to support it, I've used:
- https://joltfun.com/ - Buy games with LN at low prices - https://www.bitrefill.com/ - Buy gift cards for many shops. This lets you make purchases on shops that don't accept Bitcoin.
There's also moon, which I haven't used but lets you buy from Amazon with LN: