Hi, I would agree to do nothing and tag this bug as bullseye-ignore, and document the fact that users need to manually configure/mount cgroup1 stuff. It's IMO perfectly fine to require some level of configuration to use a piece of software.
Though in no way, removing cgroup-tools from bullseye is a good idea. Some software (like cinder) need it to configure I/O bandwidth. Cheers, Thomas Goirand (zigo)