What is DemDex.net? Can I delete this cookie?

What is DemDex.net? Can I delete it from the list of cookies that shows up under the padlock icon to the left of the URL, under cookies, when I visit a website? Remove it or block it? A web search says DemDex.net is some sort of legacy Adobe website. If I block this cookie will websites quit working? Thank you!

Brave: Version 1.27.108 Chromium: 92.0.4515.107
Windows 10 desktop.

Removing cookies won’t do anything to the website. So you can clear it.

Yes should be just fine deleting the cookie. Some documentation if you need it:

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