Yesterday I got an email from SANS (email@example.com) which mentioned that Google is now selling its 2FA Security Keys on the online store, and provided links to reviews of it on The Verge, Bleeping Computer and CNet.
I was keen on checking this out to get some idea of what's included and all, but interestingly, when you click on a link to Google's store on any of the above-mentioned pages, you get redirected / find that the page isn't available.
I also checked related articles on Google Cloud and their blog, but in all cases, it was the same result, with a URL that doesn't lead anywhere. Either they've made fabulous sales or the product is already off the market!
I use 2FA whenever I can, in the case of Google I employ Google Authenticator on my phone, & if I can't use that, avail of the security codes, so I don't know if this would offer any advantage, at least to me...