util-linux-systemd 2.25-9.1
On leap I see only one enabled timer in systemd after installation:
"systemd-tmpfiles-clean.timer" .

While installing I saw that there is a fstrim.service for all fs, as I already
use btrfsmaintenance I wanted to see where it is configured, but:

systemctl status -l fstrim.timer
fstrim.timer - Discard unused blocks once a week
   Loaded: loaded (/usr/lib/systemd/system/fstrim.timer; disabled)
   Active: inactive (dead)
     Docs: man:fstrim

systemd[1]: [/usr/lib/systemd/system/fstrim.timer:8] Unknown lvalue
'Persistent' in section 'Timer'

systemd-210 does not know the Persistent keyword.
The timer seems to be disabled by default.

Bug 884338 was about the Persistent keyword in package logrotate in 13.2 .