I’m in the “wider is better” camp. Unless you’re trying to get your commute done with a 18-20mph average, there’s no reason to conflate speed with efficiency.
I don’t know much about the OP’s proposed route, but things like traffic, surface conditions and changes in these along the route may mean that the “fastest” bike configuration might not be the most effective.
When I was commuting to my old job, I found that while I did set the fastest time on my ‘fast’ road bike, my most consistently fast bike, according to my RWGPS tracking, was my XC hard tail MTB, running 1.95” BMX tires. My route had a combination of MUP, street surfaces and “super-sidewalks” with frequent surface transitions, and the big tires allowed the MTB to maintain a moving average speed within 0.5 mph of my road and touring bikes, which clocked significantly higher top speeds; the MTB didn’t have to slow down as much