In the link I posted, there are two sections, one for beta (software) and one for hardware. You do not have to have a FB account for software beta testing. However, at this time, you do need to be on FB to apply for hardware testing. As indicated in the last paragraph of the link (copy below), you can apply and indicate you are not on FB. You will not be considered until such time as Wyze moves off FB for hardware testing:
We do plan to move away from Facebook groups for future testing, but we’re not at that point yet. Currently, hardware testing communication is limited to secret Facebook groups. If you want to be a future tester for us but would rather not use Facebook, please include that information in the Facebook line instead of your Facebook email. We won’t be able to work with you right now, but we want you in the running for the future.