sfm, skibidi toilet and nostalgia

Hey ! I am researching into SFM culture and skibidi toilet from a media studies perspective, and since skibidi toilet is presented as this strange almost childish nihilistic piece of film making in the media, I thought I would turn to you guys for a more nuanced answer.

I have so many questions as I feel like I am extremely stupid in comprehending what is happening inside the Skibidi narrative, and then I realize the primary audience is kids... What do they make of it, haha?

Do you think most people in the SFM community have also been playing the same games, like TF and HL? Kind of by gamers for gamers, fan-culture? And are there any other examples than Skibidi toilet of SFM films gaining so much attention from primarily non-gamers, or at least kids not having played the same games as the characters and universe derive from.

Basically, I cannot really understand how kids are interpreting and dechipering what they are watching in Skibidi toilet, when most of them are not familiar with the story lines and vibes in the Half-Life universe for example. What do you make of it? How can SFM basically be enjoyed by non-gamers? And by kids who are grasping internet and gaming culture, but have no ways of feeling nostalgic for it? How can it still create an emotional sensibility and be "enjoyed"?

I would be very grateful for any answer !