LG B6 OLED Question

[aimforsilence]

Hey everyone. So my local Best Buy has a good deal on the LG B6 OLED TV. I realize the B7 is out but to my knowledge not that much has changed between models and for the price this particular Best Buy store is clearing out the B6 I figure it wouldn't be worth the extra cash for a B7. Anyways my main question is about gaming and screen retention. I realize OLED TV's are prone to slight screen retention but wanted to know from people who have OLED TV's or the B6 that play games how bad is it? Should I be worried or not at all? I am aware that you can "Clean" the screen via internal software the TV comes with but how useful is it at "Cleaning" the screen?

That's really the only question I had. Just want to make sure I have all the answers before committing to the big purchase. Also before anyone asks I play games for roughly 2 hours a day at least..

Thanks everyone