Signal cloud backup alpha for Android

I wonder how many users are willing to pay 2$ per month for a backup.

What I want is the possibility to choose the folder into which media are saved. E.g. I have a group for some holidays where we share pictures. At the end, I want to download those pictures and save them on my computer. Signal makes it painful.

I actually have a few friends who don't want to use Signal because they can't even get the media to be automatically saved to the phone. Really it should be a setting.