But back to gaming. I am ok with a phone ringing or being used to snap photos of things happening around the table. It's when videos and streaming becomes the focus that the game grinds to a halt. Being a dick I have come up with a solution that deals with the heart of the mater. A Faraday cage. No connection means no interest and in if its in a box there is not temptation until that box opens.
You can build something out of wood and mess like the picture above but there are several solutions. An army surplus ammo can is fantastic. A foil wrapped shoebox also works, I think even a heavily duct taped bag will do. Cut the cord my friends physical books are way easier to use than PDFs you can flip through em.