I had both Impossible burger at Burger King and Beyond Meat burger at Carl Jr. My very subjective opinion is Impossible meat is better.
IMHO I would not invest in BYND as they lose money and Tyson sold their stake in Beyond Meat is not a good sign.
OT: I don't understand the rash of IPOs of companies losing money like Uber, Lyft, Beyond Meat. The worst of all is the filing of WeWork, losing 1.9B on revenue of 1.8B. Biotech IPOs now look better :-)
Impossible Whopper at Burger King, Continental Grain (strange name for an under the radar $2B private conglomerate) is heavily invested in Impossible Foods. They partner with Restaurant Brands International who happens to own Burger King.
Continental Grain also partners with RIBT, which I own. I am impatiently waiting to see exactly why they own 20% of RIBT, a company that in like 20 years has never made a profit. RIBT does give guidance for cash flow positive by years end, a first if it is. They make rice bran protein, which is more potent than rice protein. I'm still waiting to find out how the rice bran protein will be used. Continental Grain must have a reason for buying 20% of a little podunk company. And it is not to buy it, the stock they bought so far they could have almost bought the company a couple of years ago with almost what they have invested today, so far.