> I do not consider Yubikey to be "commercial" feature - I use with my private computers.
Unpopular opinion - if you have information on your private computers that's sensitive enough to warrant a yubikey then you most certainly would WANT to pay a company to ensure the software is well maintained. Did you balk at the price of a yubikey when you made that purchase?
A Yubikey is very convenient to use to carry around keys between several computers in a relatively safe way. One can use it because of its practical side rather than because they have super sensitive data on their home computers.
Unpopular opinion - if you have information on your private computers that's sensitive enough to warrant a yubikey then you most certainly would WANT to pay a company to ensure the software is well maintained. Did you balk at the price of a yubikey when you made that purchase?