Because of the following directive in Dockerfile.osbs, the branding directives are completely ignored on most deployments of the official Red Hat Quay images:

https://github.com/quay/quay/blob/085e33bed74957fc083a03868bb7bfb1b892dc48/Dockerfile.osbs#L52

Branding is specifically defined here:

https://github.com/quay/quay/blob/2ffc12b3eb5e36c070df80fcd5ffffa9593fd22a/config.py#L183
https://github.com/quay/quay/blob/2ffc12b3eb5e36c070df80fcd5ffffa9593fd22a/config.py#L445

Registry titles are also not followed. Even if I set REGISTRY_TITLE and REGISTRY_TITLE_SHORT in the config.yaml file to something random, I don't see that random string in Quay when I deploy it.

Finally, the official documentation lists the REGISTRY_TITLE default as Quay Enterprise which is not correct:

According to our own config schema, the default value is Red Hat Quay:

https://github.com/quay/quay/blob/f35f3f137cd5d1e4594438e0db5c498651f1a396/util/config/schema.py#L159