my sil “cans” her home made soups...hot,clean jars, sealed in a very quick water bath, and then kept in the fridge....they’ll several weeks that way...
I can the soups I want to save for a longer period time with a pressure caner. The soups I want or expect to eat soon I use the mason jar attachment with my vacuum sealer and keep in the fridge, much easier. As mentioned above it is great for foods that will be crushed by a bag.