Sounds like that was most-likely ahistorical, and resulted from the paintings having been created in different societies in a different time.

https://www.christianity.com/wiki/jesus-christ/did-jesus-have-long-hair.html

In the Bible, there aren’t any verses describing Jesus’ hair. However, there are verses that describe how Jewish men took care of their hair according to the Law. Based on these verses, Jesus likely had neatly trimmed black hair, long sideburns, and a beard. Long hair was an exception. Most Jewish men had shorter hair.

https://allthatsinteresting.com/what-did-jesus-look-like

Iconic artistic depictions of Jesus, such as Leonardo da Vinci’s The Last Supper or Michelangelo’s The Last Judgement, look nothing like a typical first-century Jewish man in the Roman province of Judea. While we have little solid evidence of what the real face of Jesus looked like, he probably did not resemble the paintings hanging in most Western churches and museums to this day.

The artist Bas Uterwijk created a photorealistic depiction of Jesus based on DNA and forensic anthropology.

If you’ve ever looked at depictions of Jesus around the world, he changes quite a bit…like, in China, Jesus and company can be pretty Chinese-looking, in African art, he can look pretty African, etc.