Don't believe that. Muslim men may have their issues, but rampant dayooth behavior isn't. I think you've been coming across a lot of on the downlow types. They're unhinged
You'd be surprised. These are people I grew up and went to school with or knew in the neighbourhood. I knew them since elementary school. These are not people I became familiar with in adulthood. Some ended up in trades,
others in STEM, political staffer, NGOs, IT, etc. All different backgrounds and all different levels of religiosity. Of course they wouldn't go as far as posting it online but recording videos with their spouses is not uncommon among Muslim men (and all men). Wasn't there a story here posted like last year or so of someone who sent their ex wife's video to the Somali community in Minneapolis? And another kid who did the same to some girl? Now consider the amount of men who have videos but never posted it. They are the 99.9% of men who would never do that but there are some who will show their close friends only. There are men you know in your life whether close or not so close that have nudes or videos of their spouses (of course you wouldn't know this).
What is extremely common though are men who talk about their sex lives with their friends. If only you were the fly on the wall in private conversations.
As you said Muslim men and all men have problems. There are even people online who say men are being filthy with them on Muslim dating apps instead of looking for spouses. Many women online say men only want hookups. Sexual degeneracy is common among men but in varying degrees.