Had mine out the box now for a couple of hours.
Massive upgrade from S10+, as I knew it would be. I'm not seeing any slow downs or lag, blazing fast in Chrome and Google Photos. The adaptive 120hz refresh rate is brilliant when scrolling, so smooth!
This is hands down the brightest screen I've ever seen on a handheld device. It's going to be great for using with my drone outside in bright conditions.
Battery was definitely draining fast, but I was running a few installs and hitting a large WhatsApp media restore. It's since settled down.
The camera is very good out the box, portrait mode looks brilliant. Took some RAW files using Export RAW app in an unfavourable, unbalanced lighting environment and imported in to Lightroom. The RAW files are surprisingly malleable!
Zero complaints so far.