
Again based on a [community question](https://community.vikunja.io/t/oidc-how-can-i-prevent-username-from-being-set-randomly-how-can-users-find-each-other/2138/2), it might make sense to add a few more details about the OIDC behaviour to the docs. Co-authored-by: Daniel Herrmann <daniel.herrmann1@gmail.com> Reviewed-on: https://kolaente.dev/vikunja/vikunja/pulls/2201 Co-authored-by: waza-ari <daniel.herrmann@makerspace-darmstadt.de> Co-committed-by: waza-ari <daniel.herrmann@makerspace-darmstadt.de>