IMHO you can't tell a "beyond" burger isn't meat but its still not quite as tasty as a really good burger.
The vegan chicken nuggets are indistinguishable from chicken to me.
On a recent trip to the UK I had a Gregs sausage roll and I couldn't tell it was a meat one.....but as I wiped the grease off of my chin with my suit sleeve I thought hmmm that's ****ing good.
Tried those meat alternatives as buy them in for vegetarian granddaughter when she comes and wants a meal. Can eat them but can certainly tell the difference.