Midsommar is one of those films that people like me *absolutely detest* because it just plucks fake folklore and badly researched wikipedia articles and mashes it together to make a 'fun horror film'
And I'm sitting there just noting all the discrepancies, errors, full invented BS that casual watchers
believe is true.
It drives me up a wall, spread of misinformation ad nauseum.
The real problem, is you have to really dig deep and get rather academic about the research to discover just how bogus it all is -- and no one wants to do that due diligence except hyper nerds like me.
Those 19th century 'antiquarians' did folklore dirty and we are still just surfacing from all the absolute CRAP they put out.
Read Professor Ronald Hutton if you're curious about..well, facts.