Further reading
A Red Hat blog post about cgroup Version 2:
https://www.redhat.com/en/blog/world-domination-cgroups-rhel-8-welcome-cgroups-v2
An Oracle blog post about why Version 2 is better than Version 1:
https://blogs.oracle.com/linux/post/cgroup-v2-checkpoint
Comparing Version 1 and Version 2:
https://chrisdown.name/talks/cgroupv2/cgroupv2-fosdem.pdf
Using cgroup Version 2 for rootless Docker containers:
https://rootlesscontaine.rs/getting-started/common/cgroup2/
The current adoption status of cgroup v2 in containers: