My fob batteries have worn out a few times over the years. Locks become glitchy and range for it drops greatly. And range is only ok to begin with. Cheap batteries have only lasted a couple months. (Tractor Supply big sheet of cheap disk batterys) Name brand ones from the drug store last a year or so. Never had issues starting the van though.
Yes, I've steered away from cheap coin batteries. I bought some cheap ones from Amazon thinking "this is such a simple technology [ chemicals in a coin-shaped container ], they can't get it wrong". Well, they didn't get it "wrong" per se, but the manufacturer likely used
less chemical to save money. They consistently lasted at most a year.
Recently I bought a sleeve of Duracells from Costco. A name brand (though I normally hate Duracells) from Costco. We'll see how well they perform. All I know is the OEM batteries that came with new fobs--not just of the PM but from a variety of other vehicles and brands--have all lasted multiple years, as many as 5 or 6.