I know the one you're talking about and to me that's the least egregious of them all. It's contextual and thematic, even if it is just shit.
I've been looking over my daughters shoulder as she watches YouTube shorts, and a regular clip of brain rot will announc its using the greenscreen effect. Hidden behind all the username/soundtrack/description will be a teeny tiny brown man's head muttering punjab almost imperceptibly quietly.
Not sure if they're better or worse than the dickheads splitting the screen in two and passively pointing up towards the video that is also showing.
You've obviously put a lot more thought into this than I ever will, but I've never reached a point of claustrophobia, more the opposite, like agoraphobia. Every time I learn a little more there's references to things I don't know yet so need to learn those to understand that. But surprise! That topic also has references and underlying details I don't understand and haven't heard of before.
I get very intimidated by the awareness of the sheer scope of my ignorance.