Accessing chats in big picture mode seems worse than how it worked in old big picture mode. Usually if you are in big picture mode it is because you are using a controller, and with the new one it is hard to navigate chats with the controller so I end up using a mouse.
Also, would be nice to have an option to display the entire text of a comment in pop ups, since it often cuts off and I have to entire toggle to overlay , alt tab, or look at the terrible steam chat mobile app. Apps needs work for basic messaging with it not refreshing to show the most recent chat consistently so having to exit and reopen.
Samsung s23 ultra is my first Samsung and despite having come from Pixels and Oneplus I found I actually liked the Samsung stuff like edge panel, one hand plus+ operation, and sound assistant. All the good lock additions was like getting custom rom features. Find it hard to consider a phone without something like the Spen too now, since I use it to take notes and select text.