Comment 11 for bug 1951491

No, it just means that the journal is not collecting any user session logs. I'm afraid this is beyond snapd scope at this point. Perhaps you can try to make you openbox session to be more like what GNOME and KDE set up, that is with systemd user instance that can be accessed via dbus. I don't know how you log in, maybe to need to tweak the PAM config so that pam_systemd is included, though I'm far from being expert here and the user sesion setup has become crazy complicated.

Anyways, the snapd part is working as expected, such that if a separate cgroup for the snap cannot be created it stops before breaking the one your session is in.