I'll speak from personal experience. Since I have USAA Auto insurance, and they always recommend Safelite (almost like they have a financial stake in them), I always use them, and have for many years.
I think I've probably had 4 or 5 windshields replaced by Safelite in the past 5 years, and the results have always been excellent. Never a bad windshield, and all other details have been excellent. With other installers, I've occasionally had problems with rear-view mirror fit and stability, glass clarity, etc.. not so with Safelite.
Additionally, I JUST had the windshield replaced on my 2014 Altima a week ago. I ended up talking with the installers about if it was OEM or not, and they stated it was Fuyao, and that Fuyao is a good quality OE (not OEM) solution. I have driven the car since, and the results are top-notch.
I can't speak to "Safelite brand" windshields (didn't even know that was a thing), but I CAN speak to the quality and results of what they have installed for me in the past.