Bought two Thetis FIDO2 dongles and used them on websites that support FIDO2 or U2F. The design of the key itself is pretty strong. One of the keys also survived an accidental wash and dry cycle. I was able to set it up to use on Debian-based Linux (Ubuntu and Raspbian) for passwordless login. Some configuration is required for Linux to recognize the key. However, it's a little disappointing that passwordless sign-in for Windows 10 sign-in without Azure AD isn't working as expected at the time of review. Thetis provides setup documentation as well as a key management utility developed by Thetis, but it's poorly organized on the website. The information was distributed through the product page, FAQ pages and instructions pages.
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