One of the privacy benefits not mentioned in the guide is that you can run two separate profiles in Calyx that are segregated.

You can then keep a "personal" profile that includes data and contacts etc. And a "work" profile that has apps that you want to keep restricted which cannot access the personal profile.

You can then run two VPNs at the same time one in each profile. This is useful if want to run Orbot perminantly in one profile.

Then using something like self hosted Nextcloud or Syncthing (both on Start9 Embassy) you can back up your data / photos etc to your own server rather than a cloud provider.