Nope. (Well, there are people who believe that, but there are also people who believe that vaccines cause autism.) As a scientific consensus, the concept IQ is well supported by psychometric research.
The individual IQ tests, of course, may contain mistakes. And any online test is most likely completely made up.
> Has there been any progress on measuring intelligence in a less biased fashion?
Of course there was progress in reducing bias in tests. For example, older IQ tests often contained questions about history, which is more an evidence of cultural background than of raw intelligence. Or verbal tasks, which disadvantage people who don't take the test in their first language. Modern tests are more about patterns, see e.g. Raven's Progressive Matrices. Yes, even this can be discriminatory against e.g. blind people. It's not perfect, but there is definitely a progress.