Christ, some of these posts are nuts.
No, the OP shouldn't have to sit in her car for an hour after working so that her dh can have quiet at home, where he "prefers" to work.
No, she shouldn't have to go swimming after work in order to avoid going back home, where she lives, with her child, who she presumably wants to see when she's finished work, so that again, her dh can have that quiet 1.5 hours without being disturbed.
No, she shouldn't have to come home from work, leaving her child in nursery for an extra hour, prepare dinner, then race out again to collect her dc from nursery, just to give her dh that 1.5 hours.
Sometimes, working from home DOES NOT bring benefits to families if the majority of the family are expected to tiptoe around in silence while one person gets to avoid a commute and wear their pj bottoms all day.
DH needs to weigh up whether he does prefer to wfh given he'll be disturbed in the last 1.5 hours.
He's the one complaining, he's the one who needs to sort it out.
By working from the office, working from a different space in the house, planning his work differently so he can do quiet admin tasks to avoid the child hearing him, taking a short break to see the child when they get home before finishing work off later.
Or some combination of the above.
OP has said she's happy to be out some of the time, just not 5 days. That is not at all unreasonable!