SeedVault on Teracube 2e with Android 10/Q variant?

I’ve seen referenced here and other places that SeedVault (Calyx Institutes FLOSS Android backup initiative) is now included in Android 10 variants like LineageOS or /e/ OS. Has anyone here tried to use SeedVault for backup or recovery on the 2e? I have /e/ OS on my 2e, but haven’t figured out Seedvault yet – it’s on there, but I’m not sure how to use it.