I would like to get an access to my managed dispatchers as our CSE has suggested. He also pointed to https://experienceleaguecommunities.adobe.com/t5/Adobe-Experience-Manager/publisher-passing-401-auth... post as a solution.
I added RequestHeader unset Authorization to the mod_headers.c section of my vhost file, but that did not solve the problem.
I am wondering what additional limitations on dispatchers and publishers in environments managed by Adobe prevent this tip from working.
If you need access to your dispatcher, please reach out to your CSE directly or raise a daycare ticket  explaining the reason why the access is required and the business impact of this issue.