I do not use a backup tool.
To me, tools add unnecessary complexity. They can fail. They have settings... and they cannot think.
My process is that I keep superfluous data storage. Since on Zorin OS, you can drag and drop a file into a compressed file... I compress all data I want to save in the storage with the folder name that file goes into on my OS.
When I work on any project or add photos to a collected, I also drag them to the "new" to the compressed file in that folder to add it, which means I am Constantly staying backed up with very little time between and always aware of what is backed up.
If I need to reinstall, (Rare!) I use: