yeah, studies like that need to do a lot of work - if they’re any good - and look at a a lot of different angles… The news articles usually do a terrible job of explaining such studies and the strengths and weaknesses - so it is hard to see the real evidence base or assess how much weight to put on it.

Unfortunately, in my opinion - the best way to know if such studies are any good is to ignore the news article completely , find the the full paper and spend a bit of time trawling through it.