I was given a few sample tubes of Frog Lube at an IDPA competition a few years ago. I've since used it on my AR-15, Glock 19, AK-47, and my boss' AR-15, until I ran out. None of them exploded.
I never bought any. I'm sure it's fine stuff. It's just lube. I'm not going to overthink it.
My cleaning regimen, when I actually remember to do it, involves spraying everything down with carburetor cleaner to degrease/remove carbon buildup, followed by coating all internal and external metal surfaces with a thin layer of oil, and appying just a little bit of grease in strategic places (major contact points, slide rails, cams, etc).
Seasoning is for steaks. I've never bothered to season a firearm.