My in-laws just bought a larger deep freeze and said we could take their old one. I am trying to figure out the best way to use it.

We have a Costco membership and usually buy our meat and fish in bulk, then bag them up for dinner servings. My wife and I have been starting to meal prep on the weekends (mainly prep work of cutting veggies up) and have been bagging and freezing those as well.

We buy a decent amount of fast snacking food to heat up in the oven or air fry, and thats where I am getting confused.

Is it best to meal prep/store meat in a deep freeze, or should we keep all of that in the upright fridge/freezer and put frozen pizza, French fries, chicken chunks, etc in there?

Also if anyone has recommendations for a cheap vac seal machine that would be cool.