It is absolutely not true what you are saying. Firstly, the S10 lite is not a low-end model. It is still an S series. Low end devices are M series for example. Secondly, also s20 series had very simmilar, if not the same, problem, but it should be fixed by now with a sw update.
I can confirm as an owner of the device, the S20 (at least the plus model) does not have this green tinge problem. Also, my apologies for calling the S10 Lite a lower end model. Please understand I was referring to the range that was below mid-range, but still above budget models. (Considering the S10 is now mid range by price and specs, and considering the M series as lower end models) I hope you understand where I'm coming from.
I'm facing the same issue on my new S10 lite and it's very annoying espically at night when brightness is low.
Don't know really whether it's a hardware or software issue.
I just got a refurbished S10+ (snapdragon version) and I'm having the green tint issue strongly when brightness is below 40-45%
How can we escale this topic to Samsung? It really seems to be a software issue