They do make induction stoves for woks, if you wanted to use woks in a commercial kitchen you would get a specialty stove much like specialty gas stoves are used for them now.

There are now and have been for years induction wok cooktops with a concave base

https://maxima.com/en/induction-wok-wok-burner.html

I see chefs use these daily at the local food court to prepare Asian dishes. Your comment doesn't track with reality

Ok, I'll refine it to any decent authentic Asian restaurant not in a food court, ie. like this:

https://www.youtube.com/watch?v=fT8tQhovT0k

So use a standalone gas cooker (google 'countertop butane cooker'). Yes, I have seen professionals use them (granted, in a 'demo kitchen' setup).

Flat bottom woks do exist.

If it has a flat bottom it isn't a wok. A flat bottom would make it a "cooking pan" instead of a "cooking pot".

Flat bottom woks have a flat bottom. not a flat inside.