Considering that people eat mushrooms all the time, most likely fine.
In fairness, it's not a crazy question - mushrooms contain a lot of undigestable and fermentable carbs (raffinose, chitin) that can affect ...passage...in some people, and cause flatulence in others. Westerners outside of central Europe tend not to eat meat-replacement-sized portions of mushrooms and are probably more familiar with the digestive dynamics of meat.