How is the picture and text ?
Text is fine on QD-OLED i have the 49" Compared to the VA panel next to it, 34" it is clearly a better experience.
I game on the OLED, leave pc on almost all the time, monitor is set to go off after 30 mins or an hour if hour is an option. I'll run the OLED care option on the display usually once a week, when I can remember, only takes 5 mins or so. Not long at all. I use a shifting background color theme. Also dark mode wherever I can.
My room is bright enough in midday to not need to turn on the room light. Usually play at night though playing during day hasn't been an issue. Its not the G9 but it does use the samsung panel. 240hz. They also have a 144hz version.
QD-OLED will be the Samsung made panels, WOLED will be the LG and they just released a new one but it wouldn't be considered a deal. Forget the acronym.
Here is a SS of CMD prompt so you can see the text. Ill try to get a black text on white also.
Display settings are at 100% or default. 5120x1440p res.

EDIT: the white background looks crisper than what this SS looks like. IDK compression?