I am not too worried about what the other rookie QBs do. Daniels and Nix are older, played a lot more college games, you expect them to be more ready. Williams may not be any more ready than Drake Maye, but CHI really has no other option. Maye is either going to be a good NFL QB or he isn't, same for all of them. I pretty much expected that he was the least NFL ready of the top QB picks, the most raw. We have seen the tools on display, he can run, he can throw, he is competitive, all that looks great. But it does not seem that he is quite ready to be an NFL QB right now, at least based on what I have seen so far.
I am not worried at this point. It still seems like he can become a very good NFL QB, I have not seen anything yet that worries me (simply being behind developmentally relative to the other top picks does not worry me at this point). All these QBs have a lot still to prove, basically they all have everything still to prove. At this point, you can't assume anything about any of them. They will either develop into good NFL QBs, show they can handle the speed of the game, show they have the durability to hold up, or they won't.