>>10913748So the authors provide crude interpretations.
If the Swastika meant the sun then why is it the oldest is found with the yin yang.
https://archive.org/details/7000yearoldyinyangandswastikadiscoveredinromaniaoldeuropecucutenitrypillianvinca_202002The ancient symbol of the sun wasn't a swastika. the pic you post isn't the sun but the star constellation pleides.
Pic related
http://www.davor.krajnovic.org/vucedol/index.html