Vue does have a ton of GitHub stars, but it’s also the name of a PlayStation brand, luxury apartments and dozens of other high profile things. For accurate Google search trend results you need to use the topic trends rather than keyword trends. The same goes for Angular and React.
You should also corroborate your findings with more data sources. Good corroboration should show similar rankings. Also keep in mind that data used for rankings like this can be gamed (as soon as a metric becomes a goal it ceases to be a good metric), so corroboration becomes more important.