@TallGuy
I’ve used Cape Storm Tech Longs, Pretty durable, block cold wind well, dry quickly and cool enough for summer hiking. Best feature are their front pockets, which has a zipped-pocket on the deeper hand pocket, good for storing bits and bobs. Mine are older, like 10-15yrs so not sure about "new C.Storm " quality but after-service is pretty good with repairs in gen. Also, they don’t “swish-swish” when you walk. And block sun. I don’t like smearing on sun-block so prefer to cover up. Shorts will always be cooler.
Problem I’ve had with zip-off-legs is that the zip has sheared off due to leg action pumping on a climb (with other brands not CS) so I avoid them now and carry super light running shorts as alternative/back up when the heat is unbearable…but in mountains there’s always a little breeze building