^^ Well said.
"Proper gun belt" is over-rated, and a very trendy thing to say, "just because" on gun forums. Mainly by narcissistic bandwagon parrots.
I have Beltman belts. I have Wilderness belts. Both will take a set (sag) over time. Of course, less of a set than a flimsy Walmart belt, but they will all sag over time, unless there is asteel or Kydex lining inside the belt (and even a thin Kydex lining would probably eventually sag too).
And a stiff belt has nothing to do with how a holster holds and protects a gun.
Back to the topic of this thread, which has nothing to do with belts, I am a huge fan of Concealment Solutions Cobra OWB holsters. They are tight to the body, secure, and very easy and quick to install / remove:
https://www.concealmentsolutions.com/product-p/cobra.htm
I have been using Cobras for several years now, and have never been disappointed about anything with them.
Before Comp-Tac was sold to a new owner and rapidly went downhill (in product choice, but not quality), I
loved their Gladiator OWB holsters, and sorely miss them. They installed on the belt with leather loops with snaps, and had a Kydex body with a leather backing.
I utterly despise threading a belt through a holster. I don't like a muzzle protruding through the bottom of a holster, just waiting to get bumped by a chair arm or something, and inadvertently un-holster my gun for me. I have Glock Sport Combat holsters, but I never use them, for those reasons. But I keep them in my holster box, in case one of my other holsters breaks or something.