Article: Unbundled Business Class fares that exclude perks like lounge access

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if 2 pax going are the seats at least next to each other

Depending on the airline and when you get to select “free” seats, you’ll be getting what’s left. So on a busy flight, it’s quite likely you wouldn’t be seated together.

Although, on 1:2:1 seat configurations, those “1” (window seats) tend to go first and the middle pairs last. So that improves the the odds. Then it’s a question of the actual seat style and whether you can see your travelling campion over the partition.