Please feed this back via the support tab in your Samsung members app. If enough users complain then maybe Samsung will consider it in the next update release.
I have vividness sliders on the A25 5G, they don't work, people with other phones have said it doesn't work on their phones either. The only thing that works is switching from vivid to natural.
I think Samsung are aware of the problem, but they don't want to do anything about it.
