Yes. The more reports Support receives, the more likely it is that the problem will gain priority, but they’ll need details on the user context to help work out where the problem is coming from.
However, running the latest update, I’m not seeing any special problems with brightness. Make sure “Extra dim” is OFF (under Accessibility). You might also try turning off Adaptive brightness (I see no mention of that in this topic so mention it just in case). That’s under Settings > Display but you can also turn it off/on in the quick settings pull-down pane, by tapping the little sun symbol with an “A” in it, next to the brightness slider. White symbol means AB is OFF. Light blue means ON.
Other possibilities: Have you installed any apps that might have a bearing on brightness? Screen control, that sort of thing?