I'm not sure I'd compare the brightness of a mini led panel vs oled. My current Razer Blade has under 300 nits oled and it's sufficient unless the sun is shining on my screen which is rare. Even 500-600 nits would be plenty for a laptop imo.
This new panel must be amazing, as I have a galaxy book 4 pro (360), and the picture on that is brilliant.
Since I got the thing a year or so ago, my intake of films and shows has gone up massively. I hardly watch these things before hand, now I'm watching lots, basically because of the screen matched with a pair of FT1 headphones. Also use a fa11 dongle for amazing sound output. Put the 3.5mm aux give out very good clean sound too.
Samsung's OLED screens have not been very competitive in 2025, especially in terms of brightness. The new Galaxy Book6 Ultra finally gets an improved ILED panel, but competitors with tandem OLED screens or Mini-LED panels still have an advantage.