The issue

Ubuntu 22.04 does not have cgroups v1, but rather v2. slurm-wlm (the package that wraps both slurmctld and slurm, which I use for single-node job management) is not packaged with cgroups v2 support.

Solution

The solution is to compile from source!

How to compile from source on Ubuntu 22.04
Auxiliary files to compile