Yes, all plastic food service items are of concern.

*Though the studies on harder plastics have been focused on plasticizers leeching into the food or liquid.

Micro plastics are a concern with all plastic food containers, especially when you’re heating something in them.

It’s long been a recommendation to not reheat leftovers in plastic

If you instead use glass or stainless, you don’t have to worry about it. Or in theory they last longer

I think the idea is that adding boiling water to something made of plastic probably leaches chemicals.

As far as Tupperware and coffee flasks go, yes. This is also a concern.

There's plenty more research to do about microplastics. I'm sure the plastic aeropress is still significantly better than using soft plastic disposable coffee pods. I'm not a scientist or doctor though so don't take my word for it.

Did someone test the aeropress and find lots of microplastics?

of course not. People read it on Reddit.