Read all kinds of things in the media and on the 'net. Some are true, much is false.
You shouldn't do that, but use this. All related to shipping product, or the ego of the want to be gatekeeper/ opinion leader/ influencer. Seen one YouTube channel with a really young guy doing it, and he has $500 sets of headphones saying these open back units are what you need for mixing and mastering.
Whereas an actual expert, Andrew Scheps, just uses SONY MDR-7506 $100 closed back headphones and has for 20 years.
May expand this comic to include BINAURAL mixes which are a different thing again.
THE SHILLS are everywhere, and I wrote and recorded a song on that too.