I have the S21 Plus, but close enough for these purposes. I'm not imagining the Pixel to be light years ahead necessarily, but at least an evolution ahead. Also, I admit that some of the issues may be with all phones and even maybe the network sometimes, but there is a large part of me that want to see if the grass is greener on the other side. I've had a bunch of random wireless charging issues with my last bunch of Samsung phones. Different phones on different chargers that would just randomly go into a charge/not charge loop. The camera is nice for FB pics, but when I move the pics over to my computer they aren't so amazing looking with a lot of loss of detail even in well lit pictures. I've always heard good things about Pixel cameras and am looking forward to trying them.
I assume and hope this is an Android 12 thing, but I HATE with a passion the color lock screen notifications as most of them are too dark to see unless you are up close to your phone. I'm really hoping they are all white again like this and if so can't wait to go back to that.
25 to 30W charging isn't a huge deal. 23W wireless charging should definitely be nice though.
Very frequently when I try voice to text I have to wait a long time while it's initializing before I can speak. Again, not sure if that's necessarily a Samsung thing, but I'm willing to give Google a try to see. The Pixel is also supposed to have a much better voice to text engine.
Those are a few of the things I can think of at the moment.