Even backups on android could be simpler, such as automatically storing the backup file on a cloud drive. Right now we need to set that up manually with a separate app.
Also while history isn’t important for you, it IS important for other people. If I couldn’t do the bare minimum with backups, I’d probably have dropped signal. I know some friends didn’t take up Signal just because of chat history reasons (iOS, couldn’t set up cloud backups on android, etc.)