Looks like these companies responded to questions related to HEK-293 derived flavorings and pepsi, coke, kraft, and campbells confirmed they are not using these products. Nestle did not respond and the sticker does not mention certain other companies such as pfizer.
https://fullfact.org/online/HEK-293-cells/
Not everything is a lie. Not all conspiracy theories are false. This is a poison pill psy op tactic called astroturfing. It's intended to smear or discredit other theories. You can believe what you want about FE but we should be asking why it's on GAW.
Good point the timing on this is really telling. Came doing save time as 2016 election targeted at alt right sources to mitigate their influence