Comment # 5 on bug 1215663 from Michal Koutný

(In reply to Vědomil  Vildomec from comment #0)
> Could I ask to change that? Change config, build a kernel with
> CONFIG_SCHED_AUTOGROUP=y, and make the OpenSUSE kernel and the whole distro
> more friendly to gaming through Steam.

I'd suggest digging deeper for possible causes of the issue.
Can you quantify the friendliness in comparison with basic enablement of CPU
controller? [1] Or roughly describe what's the expected behavior?
Would autogroup be needed nowadays at all?

SCHED_AUTOGROUP was poorly justified feature (already in 2010) that can be
realized purely in userspace by creating respective groups manually (or
implicitly e.g. via PAM as would happen with pam_systemd when CPU controller is
enabled).

Don't let me start on combination of autogroups and regular groups (consider
containers) in one system. I admit, I'm not a fan of enabling this config
today.

[1] E.g. override /usr/lib/systemd/system/user@.service.d/20-defaults-SUSE.conf
 with
> cat >/etc/systemd/system/user@.service.d/60-cpu-delegation.conf <<EOD
> [Service]
> Delegate=cpu
> EOD