There's a lot to like about Solana, but one thing to dislike is the ongoing claim by the Solana community that Solana is actually fairly decentralized.

In reality, Solana is a highly centralized blockchain. Solana has zero protocol specs (the code is the spec), one production client, one main development organization (Solana Labs), limited exposure to the academic research community, and the entire network only runs in data centers due to extreme hardware & bandwidth requirements.

If we wanted to boil down decentralization into a narrow metric (we shouldn't want this, but if we did), that metric might be "how many guns to how many heads to force an invalid state transition?" And Solana scores very poorly on this metric.