I live in Hong Kong and can only remember one time I saw a fake meat on a restaurant menu, and it was at an extremely western health-focused restaurant of a large gym chain (nood food). It's definitely not "almost all" restaurant menus.
I think it depends on the restaurant, I'm definitely not the kind of person who goes to nood food, Mana or the other upper-middle class restaurants where plant based is in their branding.
We have restaurants which are quick, cheap eats (Cha Chaan Tengs and other fast food) and restaurants where you can sit down an talk for a bit. The latter is what I am referring to. Saying that, even CCT chains like Cafe de Coral and MX are starting to introduce these options and these lower end restaurants are the companies that OmniFoods have been targeting with their partnerships. They are also on the permanent menus of McCafe and KFC these days.
I've also noticed that Park n Shop and Wellcome now have dedicated plant based option freezers.