Grok is a verb, meaning to understand something intuitively or by empathy. It was first used in the novel Stranger in a Strange Land by Robert Heinlein.
Grok has been adopted by the tech community for use when someone is very advanced at using a certain program or a command line utility, etc. When somebody gets to such an advanced level, they don’t just understand the program and it’s uses anymore, they grok it.
It’s actually kind of annoying and sad that Elon is stealing the word to use for his LLM.
I would argue that Arnold kind of has a brand around being wholesome nowadays.
I think it’s more the fact that all male celebrities got away with this kind of behavior and worse in the past, but more recently people have started to look back on it with a critical lens. The nature of social media amplifies that critical lens.