It is good that same rules apply for everyone no matter their status. Of course there are some people where this does not apply, but it should be like that.

What initial messages?

• March 11 - Journalist receives Signal connection request
• March 13 - He gets added to Signal group. All quotations are from messages in this chat
• March 15 - He leaves group

Keepass2Android supports many cloud options including Nextcloud and OwnCloud so it sync with storage directly. At least with Dropbox it works like a charm.