Hi @bscott, welcome to the Supernotes Community!
Supernotes is very different from both Standard Notes & Obsidian as we are collaborative rather than a single user experience. For example, if you backup your notes and then restore the backup – what happens if they were shared with other users etc. This makes backups, especially owning the process, a little more difficult to implement. But we recognise the importance of this and it is on our internal feature roadmap (I have added a +1 for this!)
You can already manually export all your notes to markdown and we will be improving these export and import features in an upcoming update.
Rest assured your data is safe with us. We are highly focused on privacy and security, and our server automatically stores encrypted backups of your notes – minimising any possibility for data to be lost. We won’t be going away anytime soon!