Sure, but if someone is looking for recommendations for “faraday bags that work”, I wouldn’t recommend “any chip bag” if it needs to be qualified with “it depends on a lot factors”. I’d just recommend an actual faraday bag whose intended purpose is to block a signal.
I saw a speaker at Black Hat once break down some big failures in international espionage, and one instance he cited was CIA agents thinking they could use a Doritos bag as a Faraday cage.
“Mmmmm, PFAS.” seems like an oversimplification, given that the study’s conclusion states
individuals reporting the use of dental floss had lower levels of serum PFASs overall, with the exception of PFOA, which was slightly elevated.
I agree the OP’s use case isn’t life-or-death and therefore doesn’t need the highest quality faraday bag, but they asked for ones that work, so I felt it pertinent to point out that “any chip bag” was not, in my view, a particularly good recommendation. It’s cheap and accessible, but isn’t going to work as well (or at all) compared to a bag that was designed to block signals.
In this instance, you get what you pay for. OP is free to try the chip bag method, but they ought not be surprised if it’s an insufficient solution.