I can relate. I've been using a screen dimmer software on my PC for 10 years and counting, it helps me reduce eye strain when I play video games.

One thing I really hate is the Red Mage LB3. It covers up boss mechanics on the whole screen AND it's so bright I actually have to close my eyes for a second... It's horrible, I can't believe they haven't nerfed that visual effect yet.
(And I'm saying this as a RDM main, I never use LB3 unless the party asks me.)