I have two "bossy" girls (they are more than a year older than the rest of the flock). Being the oldest, they decided they were boss, even though they were the newbies.
For a while, they prevented the younger chicks from access to the two water bottles IF they were wanting water. Their boyfriend would prevent all of the other chicks from coming into the coop (where the water is) if his girls were in there for any reason, including laying eggs.
I nipped that in the bud. Put up curtains (aka rags) on the nesting boxes. Encouraged the rooster to leave. Had to block his access until he learned that laying an egg is a private business. If a bossy hen tried to prevent access to water, she was physically removed from the coop. I would spend time in the coop and in the area daily and socialize with all the animals.
There may be some bossy behavior still, but it's not nearly what it was.
So yes, bossy behavior can affect the others.
Can you spend more time with the flock?
Can you divide the coop into two spaces, with separate entrances, with separate nesting boxes, and separate runs?