I like pondliner myself. Take it out, hose it down, put it back. Neat clean and houses no bugs, lice or mites. Used to use hardwood chips, My ambition has gone down as my age has gone up
I do not use pine shavings. I use hay or straw in the nestbox, pondliner in the coop.
In Texas we build very airy coops with a good roof, or the heat would be horrible. Many people use some kind of mulch and do deep bed but their coops are full height to keep the heat above the chicks.
Mine...
My soil holds too much moisture, that natural dirt gets nasty smelling when I get 6 inches of rain, but the coop is always open unless we get a real blue norther, like 2 days you know.
Once a year I change out the run sand and remove the top stuff. And the egg shells all get harder and it's wonderful. Takes about 9 bags of play sand, it's a good sized run