So people kind of knew asbestos was harmful wayyy before it mostly stopped being used in 1979 (USA). But, it was still used constantly in many industries and ended up everywhere. What do you think is an example of something we find out is DRASTICALLY harmful 10-50 years from now? My guess would be screen time.
Except there is literally not a single unscratched and unchipped teflon pan in existence in any household kitchen.
You will consume those flakes and particles and the wear and tear in your food over years, and it certainly adds up.