If you work on linux and cannot edit some of the project files right after the first installation, you can run docker compose run --rm php chown -R $(id -u):$(id -g) . to set yourself as owner of the project files that were created by the docker container.
If Symfony is generating an internal redirect for an https:// url, but the resulting url is http://, you have to uncomment the TRUSTED_PROXIES setting in your .env file and add this line in config/packages/framework.yaml:
# config/packages/framework.yaml
framework:
trusted_proxies: '%env(TRUSTED_PROXIES)%'
For more details see the Symfony internal redirect documentation.
See more in the TLS section