Here's another article that has more sources

https://www.medicalnewstoday.com/articles/what-do-we-know-about-microplastics-in-food#The-dangers-of-microplastics

It's important to keep in mind that nothing is really 'static,' the molecules consisting of the plastic and food are still vibrating and decaying into its local environment due to entropy, everything is to some extent. While strong and resilient, plastic molecules will still 'leech' out. The concern is more to what extent. High temperatures and liquids would be the highest risk factor, while low temperatures and solids would be much lower.

I think storing solids in plastic at room or cold temperatures are fine. But I avoid microwaving or storing hot items in plastic and opt for glass or ceramic instead. Our entire bodies are already compromised with micro plastics so for me it's just about minimizing exposure when I can