@DAVESHADY: This is definitely a useful feature in terms of limiting your background activity, and improving your battery life. If you head to Settings > Battery & Device Care > Battery > Background Usage Limits, you can toggle on 'Put Unused Apps To Sleep' for an automatic approach, or tap on 'Sleeping Apps' or 'Deep Sleeping Apps' and add apps manually to these lists via the '+' symbol in the top right.
Know this thread is a few months old but I would certainly recommend not having apps that you only use occasionally constantly running in the background.
I do not work for Samsung or make Samsung Products but provide independent advice and valuable contributions.
My Device- S21 Ultra 5G ( SM-998B/DS ) CSC= BTU , 12GB/256GB
One Ui 5.0,Android 13 .