Not a single call recording app is working in s10 lite.....Why??

I added some applications like Gallery facebook in secure folder and I thought these apps are secure now but these apps were still available on main screen without any pattern or pin I was able to open them. What type of security this is. How to lock...

Samsung Galaxy s10 lite lacks application security there is no such feature and you need to download third party applications for that. I have no idea why did they removed it from some devices.