Glass isn’t easy to recycle because just a little bit of the wrong stuff can mess up a batch.
It is reusable, though, and you can shatter it and get aggregate for concrete which is getting rare these days as all the obvious places to get sand from, such as deserts, have grains that are way too round. In that case it doesn’t matter if there’s the occasional mug or drinking glass or window pane in the recycling, concrete doesn’t care.
PET is actually excellent for recycling provided that you actually recycle it, i.e. have a deposit scheme that works. Like the German 25ct/bottle one. Provides a very clean recycling stream, the product is light and doesn’t use much volume at all when shipped to the bottling plant (they’re expanding the bottles on site), etc. Also, nature apparently is learning how to break up PET.