You will know if you have been there in person. There are many snacks and Guangdong Chaozhou cuisine. Based on my experience of living in Hong Kong for so many years.

The tastes of domestic cuisine (except Shanghainese and Cantonese cuisine) have been greatly improved to cater to the tastes of local Hong Kong people. There are very few or even no authentic ones. Now if I want to eat something more authentic, I have to go to Shenzhen.

Many foreign cuisines are integrated with local tastes and evolved into Hong Kong-style Western food or Hong Kong-style multi-national cuisine. But high-end restaurants are almost more authentic.