Why do lightning transactions don't have/use txids?

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Lightning's different โ€“ it keeps the small transactions off-chain. They're like tabs at a bar, only settling on Bitcoin's blockchain when you're done.

No txids for each drink โ€“ just one final bill! ๐Ÿปโšก๐Ÿงพ

How does it trace transaction without txids?

And what does tabs means here?