Same.

The people I’ve noticed complain seem to buy giant drinks and let them sit around for a while.

Never been a fan of flat warm soft drinks myself.

I’ve definitely noticed paper straws come in different qualities, and are affected differently depending on what you’re drinking. But the ones that turn mushy were largely phased out of use because I’m sure a lot of people complained. I haven’t had a mushy straw in years.

When people first started using them there were some that were pretty rough. Like flop over the side of your cup levels of structural failure.