I'd describe the mid 2000s aesthetic as "Professional", while current trends are "Genuine". Snaps, stories, livestreams, and other volatile social media became chic because it would go away - you didn't have to rehearse your words, worry about lighting, or ensure your images are perfectly aligned.

I really dug this Reslash concept after seeing that grainy image of a classroom used as a background. It's something you just slap on because you're about to teach, but it isn't a painfully constructed "Knowledge Session" with a stock image-riddled Powerpoint deck.