Any kind of backup of apps and their data requires root.
If you don’t have root, rooting will wipe all data.
TWRP used to be able to create an image of your system, but the practicality of that is long gone (not sure if it can still do it).
The most pragmatic approach is to root, install Swift Backup or Neo Backup. Have it backup your apps/Config to a local folder. Then have that folder synced to a home machine using a network sync tool like FolderSync, Syncthing, etc.
If you want an image to restore so you can revert, it can be done. I’m just not sure of the use-case anymore with the size of partitions.
Long ago I used an automatic imaging process weekly, back when partitions where much smaller. I never once used one of those image backups.