The default Sitecore Compose file (docker-compose.yml) doesn't configure the cd service for HTTPS, but the documentation has it being accessed as such. For example: https://containers.doc.sitecore.com/docs/config-transforms#run-docker-examples. This results in a 404 when browsing https://cd.dockerexamples.localhost.

The Compose override files that include the cd service (docker-compose.xm1.override.yml and docker-compose.xp1.override.yml) should have this configured appropriately in Traefik for HTTPS access.