I had the opposite experience a few years ago: I was a new user of password managers and did not let mine autofill when booking my plane.
The air carrier form was not consistent with my country's name nomenclature: First, Middle, Last instead of First (+second and third) and Last name. I filled it wrongly and had to pay $40 at the check-in counter because there was no passenger registered to my name on the flight.
Tried again with my password manager (Dashlane) a few days later and realized that I should have trusted it. Also, I know that it only fills fields after the selected one, not those before.
Not trying to defend HM (never tried their chairs), but I own a new Steelcase Leap V2 chair and I have the same issue. The replacement is as bad, leaning to the right. Apparently it is a design feature.
I don't understand how these expensive furniture shops can ignore such obvious issues.
The air carrier form was not consistent with my country's name nomenclature: First, Middle, Last instead of First (+second and third) and Last name. I filled it wrongly and had to pay $40 at the check-in counter because there was no passenger registered to my name on the flight.
Tried again with my password manager (Dashlane) a few days later and realized that I should have trusted it. Also, I know that it only fills fields after the selected one, not those before.