Messages like
Apr 19 19:30:52 vyos sg[2969]: user 'root' (login 'vyos' on pts/0) switched to group 'vyattacfg' Apr 19 19:30:52 vyos sg[2969]: user 'root' (login 'vyos' on pts/0) returned to group 'root'
are pure informational and only spam the syslog - thus they should be removed.