The only "AI experts" who believe that AGI is something to worry about are self appointed AI experts - Elon Musk, Sam Harris, Sam Altman etc. Zuckerberg had actually set up a dinner with Musk and LeCun to explain to him that AGI is not a realistic possibility. This led to Musk stating that Zuckerberg had a very poor understanding of AI. Looks like Musk is the self appointed AI expert in that table of 3!
Oh BTW, Musk, if you are reading this - how is the FSD project coming along?
Note: Scientists working for Open AI will pretend that AGI is a real possibility because the folks funding Open AI have a predilection for AGI.