I have Yubico’s FIDO key enabled on all the accounts I have that utilize it. I have two primary laptops I use most days, and I bought Yubikey 4 Nano keys for both of those.
But I ran into a bit of a problem when I decided to add a Chromebook as a secure, ultraportable device. I ended up buying an ASUS Chromebook that only had USB-C ports.
Fortunately, Yubikcorecently released a USB-C version of the Yubikey 4 Nano. It’s a bit expensive at $60, but it has a very low profile on the Chromebook and works without any issues.
Yubikey 4C Nano