Inquiry Regarding the Functionality of GitLab's Logout Feature

Situation: I am responsible for providing GitLab to the entire company. Therefore, the URL of GitLab is configured according to the company’s rules. However, when logging out of GitLab, all other company services are also logged out. I am curious if this is the intended behavior. Additionally, I would like to know if this behavior is normal when using SSL (TLS) certificates.

Description:

Reproduction: When logging out from git.devwiki101.com, services on sample1, 2, and 3 also log out. I haven’t made any specific changes to GitLab, and although I purchased and applied the SSL certificate for git.devwiki101.com, the certificates for sample1, 2, and 3 are managed by different teams. However, I understand that a previous administrator purchased and applied a wildcard certificate (*.devwiki101.com) to git.devwiki101.com.