If you Google “Starfield open beta” right now, not only will you find nothing official related to the game, but you’ll see a dodgy website at the top of the search page.
If you hypothetically enter said website (do not do it!), you can start to detect evidence that it’s not something legitimate. Make sure not to click on the fake beta download button because you will surely end up with dangerous malware.
The Bethesda team has made no mention of an open beta for Starfield, but it doesn’t seem impossible that it will happen in the future. There’s plenty of time until September, but while a Starfield beta might be possible at some point, it’s not here yet, and the site called bizongrow dot com is definitely a scam.
Thanks for the warning, PC Gamer.