I am suspicious. I feel like if this plastic cup I got was exposed to exactly its favorite conditions (which are conveniently difficult to achieve), it still wouldn’t biodegrade (or, worse, would disintegrate into a little pile of microplastics while the manufacturer declared that that meant it was biodegrading).

I have no expertise at all and I’m basically talking purely out of my ass, so maybe I shouldn’t offer any opinion. But the history of plastic recycling makes me cynical about it.