I haven't used the Secure Folder for a while, but I used to get prompted to back it up with Smart Switch. Are you saying that no longer happens?
So I just enabled the Secure Folder on my S20 Ultra running One UI V3.1 & Backup & Restore are both available in the Secure Folder's Settings.
If you can, you may want to TEMPORARILY move everything you want FROM the Secure Folder & THEN UNINSTALL it > Reboot & Install it again & make sure that you have the latest version of the Secure Folder installed.
Yeah that does seem kinda ridiculous!
No idea why Samsung would remove the backup option on their most expensive device??
Probably the same people who thought it was a good idea to remove the Notification LED, Headphone jack, Heart Rate Sensor & the Charging block... 🙄
But hey, Samsung has decided to collaborate with some "fashion" company... 🙄 💩 for brains!
Samsung now becomes maker of fashion phone :( not smart phone
I don't understand why they would take backup and sync away from secure folder. I have kids that play with my tablet, so I keep my personal notes in the secure folder to prevent them from being deleted. Seems like something that would automatically be a function. I can't even share between devices. Very frustrating.