I have two Samsung Ultrawides, one at home, one at work. They both work perfectly fine with my M2 Max MBP, including at 120Hz. I have connected them directly and via a Lenovo TB4 docking station. No issues either way.
One thing you should be aware of is that having two seperate monitors can be an advantage for Window management on macOS. With two monitors, I can swap spaces on one of them and keep everything as is on the other. With only one it's not that easy.
One thing you should be aware of is that having two seperate monitors can be an advantage for Window management on macOS. With two monitors, I can swap spaces on one of them and keep everything as is on the other. With only one it's not that easy.