I don't see the back-up utility, The Help says: -System > Backup- but the option isn't there

[chrisrg]

You can look in the system apps for seedvault: Settings-Apps-all apps-three dot menu for show system-search for seedvault.

Or you could try manually enabling with adb. See this post:

[HOWTO] use Seedvault early to understand Android backup

Integration of Seedvault is an ongoing task and as of 0.18 not yet ready, see the epic Backup app settings (&31) · Epics · e · GitLab to the /e/ teams plans. It is present though on releases since 0.14 maybe. The main advantage of using Seedvault now is quickly reinstalling packages on restore, as all apks are backed up, even if Apps opt-out to userdata backup. Some userdata is restored, see bottom section for limitations. You’ll use the backup- and activity-manager to configure and start on-s…