Did the Nicolaitans "conquer the laity by their hierarchy"?!

Who were the Nicolaitans in the Bible, and are they related to the hierarchy of various so-called “church” organisations?
“For [there is] one God, and one mediator between God and men, the man Christ Jesus; Who gave himself a ransom for all, to be testified in due time.” (1 Timothy 2:5)
https://www.azquotes.com/quote/773285
https://www.abarim-publications.com/Meaning/Nicolaitans.html
https://christianity.stackexchange.com/questions/93819/what-is-the-biblical-basis-for-the-hierarchical-system-of-the-catholic-church
https://www.e-sword.net/
https://www.purebiblesearch.com/
https://www.jw.org/en/library/bible/study-bible/books/
https://www.azquotes.com/quote/856730
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