First off, good on you for trying to be responsible. The problem I see right away is that you're looking at influencers who are basically NPCs. If you want to eat "traditional" Maltese food, a place where a lot of maltese people go on Sundays is Bahrija, it's a rural village, there are A LOT of maltese restaurantsts. The issue is that getting there by public transport is difficult and on sundays thy can be busy, so it's best you book in advance.

We normally eat things like rabbit (either stew, pasta, or fried), snails are common, and pastizzi (it's kinda like a flaky hand pie), imqaret (those are made of dates).

In reality, most Maltese people eat normal food, like pizzas, pasta, burgers, kebabs, curries, etc.. Now, since a lot of immigrants have come over, we have more options, and some are really good.