I have the same problem with the "deconzcommunity/deconz:stable" container. I have installed deCONZ on Windows 11 and access to the web interface is possible without any problems. Only via the "deconzcommunity/deconz:stable" container is the access as described by tomwhi. No errors in the log. All devices work without errors.
EDIT: Problem maybe fixed? @tomwhi
If I change the URL from "http://IP/pwa/login.html" to "http://IP/pwa/login2.html#OVERVIEW", access is possible.