Yeah, even visualization aside, I guess insects are not that interesting to cook compared to your usual animals. You probably won’t make yourself a “steak” from crickets alone. What is usually sold is flour. You can spread it on your salad to add proteins, or make burgers patties with them.
I write all that as if I was an expert, but I honestly never tried it ^^. One day, probably.
The goal of an emergency fund is to be available for an eventual emergency. If you lose your job and need to live on saved up money for a few months, you might be forced to sell stock at the wrong time, losing capital. There is a middle ground where you invest that money in a low-risk investment product that will grow with time, without the volatility of the stock market.
To be fair, 6 month is a lot, and most likely not the first goal someone should have when it comes to personal finance starting from zero.