What? Mine is hollow steel tubes + wires, 20€, it will hold about 12 using only the center section and it won't be even close to abuse. I only see it bending if putting heavy clothes on the side racks.

Plenty of them do both functions. I default to calling it a washing machine because both functions fall under that heading.

What you can physically fit isn’t the same as what they can actually dry effectively. Typically their sized so a washing machine is half the capacity of a dryer because you can fill a washing machine 2/3 up but you only want a dryer at 1/3 capacity. https://blog.bellinghamelectric.com/dryer-buying-guide

In other words 50 adult blue jeans would take roughly a 75 cubic foot dryer to dry effectively. Which probably exists in some industrial settings but I doubt you have that at home.