If you want to create backups more often, you can create a cron script to do it or create a plugin that will do it more often. If you’re going to make backups more often, you’ll want to see that uploads are on s3, as making copies of the uploads with every backup is expensive.
Cdck/discourse.org makes backups twice daily, I believe. They do it with some external script.
If you don’t want to figure out how to manage postgres backups you can ask in marketplace with a budget and say whether you’d rather a plugin creates backups or you get help with postgres to script postgres database backups or discourse backups.
That’s not a native wordpress feature, though, is it? It’s a plugin, right?
But the point is that making more frequent backups is probably unnecessary, at least in the experience of some people who have managed many discourse forums for many years.