I usually wear the same jeans for a week or so before changing to another pair. It’s more from laziness.
The article talks about smell. A day in the sun would eliminate that without washing.
I had a sleeping bag. It was brand new when I took it in a weeklong backpack trek in 90 deg. 90% rh every day. To say it reeked at the end would be an understatement. I considered throwing it away.
Washing a sleeping bag will damage it often beyond redemption. Instead I laid it on the grass for a couple days. The smell was gone.
I used that bag for 15 years and never once washed it.
Stuff like sleeping bags, winter coats, and comforters/quilts are best washed in front loaders. The agitation from top loaders is what ruins them.
I wash them once a year on one of the hottest, driest days in summer so I can line dry them.