This is interesting. I am not well versed on yubikey, but does it allow you to have a similar setup with other password managers, like keepass? (Meaning, one press per one password) Or is it just a substitute for typing a master password?
There are several integrations, but I don't have Google Play Services on my phone, so I only use what's available via F-Droid. See my other comment in this thread.
The touch setting is specific to OpenPGP keys. If you set it, it works that way for all uses of your OpenPGP key. You can turn it on to see if you like it. If you do, you can also set it to 'fix.' Once fixed, it can never be turned off again without deleting the private key and starting over.
