Buying a 5G protection shield seems to be a zero sum game where you always loose: If you get product that works as advertised you will loose your connectivity and if you buy a non-working you loose your money to a scammer.
Conspiracy Theorists Buy Faraday Cages To “Protect” Themselves Then Complain When They Work
Crackpots are buying Faraday cages for routers then bemoaning bad Wi-Fi
Buyers are enraged that it’s ruining their Wi-Fi signal. Amazon doesn’t care and continues to sell the devices conspiracy theorists claim “protect” against 5G.