I'm not so sure if this positioning of the iPad is an attempt to fake business class or a TV screen on her seat... I think that's just a coincidence. You can buy a holder to mount a tablet or your kindle on a flight seat online, maybe that's just what she did. AND since Emily in Paris streams on Netflix, you couldn't watch that on a plane in-flight program anyways?
But of course it is super pathetic to snap a picture of your food just to - totally casual of course - mention that you're flying business. In Europe that's really nothing special. Sure, it costs a bit more but the price (and everything else) is nothing compared to Business Class on a long distance flight since flights in Europe are usually pretty short.
And I don't know what food she's expecting. In a plane. On a flight that's probably short. During a pandemic.
No, this type of "food boxes" are used at Edelweiss Air. It's a sister company of Swiss Air, I think they offer leisure and holiday flights. If you google "Edelweiss Air Food" you'll find out that they use these boxes. According to the website.... in Economy class
(So I may be wrong after all in my previous posting and she is really not flying business class)