The Signal messenger and protocol.

I'm aware of how to set up chat backups on Android, but this only makes local backups that you have to manually upload or copy.

I'm trying to find a solution where I can set and forget backups to the cloud.

My requirements are:

1. It doesn't require me exposing the rest of my file system/cloud storage to a third party app without scoping (filesync works, but doesn't meet this criteria).
2. It can upload directly to a cloud service

So far, no dice :/

Is there some workaround?

P.S. my potential solution is move Signal to my Shelter Work profile, where I do have filesync installed, but then I won't have contacts access, which is a slight pain (and because I don't want to create contacts in my work profile).