I had problems with GSkill 6000 CL36 on the Master mobo but since then, there were maybe 8 BIOS releases. I also had problems with Corsair and V-Color, so at least on that mobo, there wasn't any rule regarding IC or brand
In DDR4, Samsung and Hynix are about the same. If you want it for benching or overclocking at tight timings then Samsung is better.
In DDR5, Hynix is a bit better because it runs easier at higher clocks, and runs a bit cooler. On the other hand, you won't see any significant difference. Most Samsungs can make 6600-6666 at acceptable voltages so about 1.40-1.45V and quite low timings like 36-36-36. Most Hynix will make 6800-7000 at about the same voltages but timings will look like 32/34/36-40-40 (depends on voltages). Considering that only a few motherboards can make more than 6600 then both, Samsung and Hynix, may give the same results for most users.
Samsung is in many kits at 5200-6000. Hynix is in some brands at 5600-6000, but mainly in 6200+ kits. Manufacturers are using Micron only for lower kits as this IC can't make more than 5600. Hynix goes to the highest clocked and the most overpriced kits. I guess that the required voltage is the main reason for the used IC. On some motherboards' QVL (mainly Gigabyte) you can find Samsung-based kits at 1.55V. However, in stores, you won't find anything at more than 1.40V. This is because higher voltages cause too high temps and instability at higher memory clocks. Usually, you may see it at 60°C+ and 6200+, but at higher clocks, it may already lose stability at 50°C or less. I had no problems up to 7000 and 55°C. My motherboards couldn't run at more than 7000. I could set 6000-6200 with 75-78°C under load. Typically while playing games or doing other things, RAM temps are much lower.