we should mention only GitHub, and remove references to GitLab and BitBucket there:

To populate the Catalog in Red Hat Developer Hub, you need to add software templates, and to add the templates, you must enable a source control such as GitHub.

rather than

To populate the Catalog in Red Hat Developer Hub, you need to add software templates, and to add the templates, you must enable a source control such as GitHub, GitLab, or BitBucket.

https://docs.redhat.com/en/documentation/red_hat_developer_hub/1.2/html/getting_started_with_red_hat_developer_hub/ref-rhdh-supported-configs_rhdh-getting-started#configuring-github-authentication