Glass vs Plastic Containers for Meal Prep Review

I have been using plastic Tupperware for years but I am starting to notice that they stain and smell after a few months of use. I am thinking about making the switch to glass containers but they are much more expensive here in Canada.

I am wondering if the investment is actually worth it in the long run. Do glass containers keep the food fresher than plastic? I also worry about them being heavy in my gym bag when I am commuting. I have seen some Pyrex sets on sale at Costco recently.

Has anyone here made the switch from plastic to glass? I would love to hear your thoughts on durability and whether they are worth the extra cost. I do not want to buy a whole set if they are just going to break easily.