Laptop, and electronic at your table ?

I was recently a bit surprise by seeing video of RPG tables where everyone has a laptop, and I even saw a thread about whether GM allowing only paper sheet are reasonable

However, on my experience (and I am part of big club, so I interact with a lot of players), some GM have a laptop or tablet especially in the era of .pdf books, but most player would use only paper.

So I am curious what's your take on electronic device, is it fully banned at your table, a GM only tool, a stuff that some player may use for note taking ? Or do you use VTT technology like you would online when playing in person ?