The problem, apparently, is not hardware, but software
On the largest American forum Reddit, users are discussing the problem of the dim screen of the Samsung Galaxy S24. The fact is that with a «shortage of flowers» on the display in its default state, the company suggests going to the display settings and activating «bright» mode instead of «neutral». But the trouble is that if you switch, nothing will change on the screen — the colors will remain almost the same as in «neutral» mode.
«This is my biggest problem with the phone at the moment. Another strange problem: sometimes gboard lags when I type something, but this is probably a problem with gboard», — wrote one of the Galaxy S24 users.
The problem appears to be a software issue, and there is evidence that the Galaxy S24's dim display issue will be fixed with one of the February firmware updates.