In commercial jobs you usually see multiwire branch circuit that just control lighting or receptacles- not both. That does not mean you can't but I am not sure I have ever seen lighting and receptacles on the same circuit or on a multiwire branch circuit in a commercial setting.
In a residential job you won't see much multiwire branch circuit's anymore because of the afci requirement.
I'm actually doing more now. These four circuits would have been SP 15 amp breakers before arcfaults. Now this set up saves me over $40 in breaker costs, about $80 in labor cost, and over $14 in wire cost.
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