We’re used to doing search forms with links in them to restrict the search to images or videos or whatever.
Yes, but screen reader users in forms mode are deprived of this choice.
Yes, but radio buttons would do the trick.
And CSS (plus a bit of Javascript) would do the presentation-and-whizzz required by sighted people (marketers, for instance).
Steve Marshall had such an idea. And implemented it. Clever bloke.