You lump a lot of things into this bucket. I am curious what you consider as not a brainrot?
It's easy to call out the kinds of low-value activities that you don't personally enjoy or partake in. It's a lot harder and more uncomfortable to see them in yourself and have some empathy and not judge others too much for their brain-off vices.
Only when I die and see the big stats board do I want to know how many hours I've wasted on Slay the Spire. And while I love it dearly I can't really delude myself that it's anything other than Candy Crush for nerds.
I've sunk 16k+ hours into WoW in my lifetime, you named perhaps the most brainrot game that has ever existed in the history of video games. It's makes Tiktok look like long form essays, doing meth instead would be considered harm reduction.
It's easy to identify when the activity is low status to your in-group. The Big Bang Theory has significant cultural importance but I bet you'd agree it's still brainrot.
Why are video games on that list then?