The problem in finding the right belts is that if it's too stiff, it will cut into you, if it's too soft, it won't hold the holster and gun tightly enough by your side and will print. Finding a happy medium is a very individual thing and that's a huge part of the journey.
I, like most here, have at least ten belts that I tried for about three that work for me and that has changed as my physique has changed, and I won't even try to count the amount of holsters that I have for pretty much the same gun that don't work for me, or did work but don't anymore, or are working right now but may not in the future.
Has anyone talked about shoulder holsters? I don't really favor them but if it comes to having a gun on you versus not, I'd wonder about that, and quite a few here (in other threads) have stated that shoulder holsters can be pretty good for driving.