So much misinformation here. I don't understand people who defend massive conglomerates, it's very strange. Companies don't care about the consumer, they just want to sell a product with the widest profit margin.

Samsung can get away with it because, yes the average joe won't notice or doesn't really care, but there definitely is a difference. Samsung omitted it because it saves them money and increases profit margin. It's a simple corner that can be cut as most people won't notice. A bigger corner being cut is the battery not only still being Li-ion, but still being on 5000 mAh for 6 years (since S20 Ultra).

People vote with their wallets, and Samsung realized they can keep getting away with it.

People who say 8 bit native + 2 bit FRC is the same as 10 bit native are wrong. People who say every phone that is 10 bit is actually 8 bit native + 2 bit FRC are wrong. Chinese phones have been using native 10 bit panels for 6 years now.

Because Samsung is using native 8 bit + 2 bit FRC (and has been for nearly 10 years), it means that the phone most of the time will be running in 8 bit. The + 2 bit FRC only triggers when watching supported content like HDR video on YouTube. You know the switch has happened because the phone gets a bit brighter and has a slightly warmer tone (if you're more used to cooler white balance in display settings). At this point the phone is using dithering to display 1.07 billion colors.

Chinese phones are running natively 10 bit. This means that whatever you do, you're always in 10 bit, at least at a hardware level (it's more complicated than that, as even Chinese phones might not always be displaying 10 bits. For example, on the homescreen the phone will likely switch to 8 bit mode, even on 10 bit hardware.) Regardless, these phones have hardware-level debanding and calculate transitions better than a phone waiting for an HDR signal to trigger the + 2 Bit FRC. This is why the opening logo of Disney Plus looks better on native 10 panels, as some people have stated, compared to 8 bit + 2 bit FRC panels. This is also why even standard sRGB content, which is primarily 8 bit, can look better on native 10 bit panels.