The cynical mind would assume that would be an excellent way for a corporation to rig the hiring process by preventing American qualified applicants from progressing and therefore making a claim that foreign labor must definitely be imported at a fraction of the salary and under visa-indenturement who … wouldn’t you know … magically happen to know the answers and pass the very arbitrary coding challenge somehow.

The only way this gets solved is by making any and all H-1B hires require the hiring corporation pay a 200% tax in addition to all other employment related taxes for the absolutely necessary and critical H-1B talent.

Or just establish the H-1B salary by some third party through evaluating what similar positions pay in the most expensive areas of the US and making each sponsoring company pay whatever it costs to get that data.