Why do some claim Ethereum to be less decentralized than Bitcoin?

I support and hold both but this is a genuine question and I just can’t wrap my head around this. Even some big Eth proponents like Raoul Pal claim this to be the case but I fail to see how. Mining wise Ethereum is a lot easier to mine than Bitcoin even at this current stage. I have one friend mining Ethereum at his home but I don’t know a single person around me mining Bitcoin because it’s too inaccessible for the average person. The two chains have pretty much the same amount of nodes currently, and both are fully open source. The only potential reasoning I can think of is Ethereum’s creator is known, alive, and still plays an important role in suggesting new solutions, and there’s a nonprofit called the “Ethereum Foundation”, but it’s not like Vitalik is the CEO of the Ethereum Foundation that controls the majority of the Eth chain so logically this shouldn’t matter at all. He’s just one of many working to improve Eth. To me the two chains are equally decentralized, so what’s behind this claim? Or maybe I’m missing something? Interested in some educated and neutral opinions