Somewhat amusingly, I first had an Impossible Burger not knowing that it was not real "meat." I didn't find out until a few months later. It tasted like a perfectly good burger to me.
[ADDED: Lab-grown is apparently more accurately used to specifically refer to food made from animal cells. I guess "plant-based" meat is the more common term with "meat" distinguishing from traditional vegi-burgers in the grocery freezer.]
https://www.cnet.com/news/meet-impossible-foods-lab-grown-ve...
http://www.makery.info/en/2018/05/07/jai-teste-limpossible-b...
I expect with actual lab-grown meat substitutes starting to get attention, people are more precise to distinguish between the substitutes today.
https://www.scientificamerican.com/article/lab-grown-meat/
I, too, used to confuse Memphis Meats with Impossible Food / Beyond Meat.
It's just that news of lab-grown meat and outfits like Impossible Food kinda sprung up at the same time in the news within the last 5 years and it's easy to confuse the endeavors. In fact, I see this misconception enough that I think IF/BM benefit from the confusion.
But I acknowledge that just because this is completely obvious to me and I've never met someone who was confused about the difference doesn't mean they don't exist.
Yes, I understand that there is a difference between grown from meat cells and made from plants with components that make it look and taste more like meat.
I've seen plant-based burger, plant-based sausage, etc.
https://www.google.com/search?q=%22plant-based+meat%22&oq=%2...