This public keyring
pubring.kbx (as I merely guess from the name) must be safe to share publicly or is it not? Does it contain any sensitive information with respect to private keys?
I want to back up this file and I'm curious what is the best practice for it given answers to the above questions. Like would it be fine to just commit it to version control (along with
gpg.conf, for instance) as is or rather
gpg --armor --export to be used in this case?