In my quarantine, I've spent most of my time in gray wool and wool-like pants:

nanamica: polyester plain weave that's water resistant with polartec lining. Warm and rugged. They are visually unremarkable and I'm going to pretend that's the reason they're cut off.
nanamica: These are basically fleece sweatpants, but they have a skirted waistband and two buttons AND sidetab adjusters, so they're orkplace appropriate sweatpants.
Uniqlo x JW Anderson: These feel like getting hugged by that bear from the snuggle fabric softener ads. I introduced my wife to these and she has appropriated them so I don't get to wear them anymore. I was only able to take this picture because she went out for a run and thus had to take them off.
Slowear x nanamica: Indestructible and the smallest size 34 in the world and I didn't realize they were polyester until I was trying to figure out how to wash them. These are functionally the same as jeans in their indestructibility and napkin-like effectiveness of wiping my hands on them (something that cannot be said for ANY of these other pants)
Uniqlo x Undercover: Sweatpants on the outside, dress pants on the inside, and they feature an elastic waist and drawstring far before that kind of thing became cool. Among my greatest clothing regrets is not buying the matching jacket when I had the chance.
Uniqlo x Undercover: They have cargo pockets. That's enough to make 'em unique, but they also feature an elastic waist and drawstring but let's be real: the cargo pockets are so trim that they're not useful for anything except maybe holding small envelopes.
Kaptain Sunshine: Made from a VERY comfortable cashmere flannel, this thing has front pockets that fit a phone and a fairly dramatic high rise, as well as sewn in cuffs that prevent these from falling under your shoe. They're practically pajamas. I also regret not buying the matching jacket.
Undercover: These are sort of a...waxy? squeaky flannel? dry hand? with a solid front crease that make these smart casual and office appropriate, which is not something I can say for a lot of these other pants. They also have that neat line above the pockets. I really haven't worn these much in quarantine, to be honest, but when it comes time to look nice (in 2022)...