OnePlus first cooperated with professional gaming club Fnatic to develop the OnePlus 7 series in 2019. The partnership brings a game mode called Fnatic Mode to the OnePlus 7 Oxygen OS system.
As well as an Easter egg and some Fnatic-themed wallpapers. After the launch of the OnePlus 7 series, these features have been slowly continued to several older OnePlus phones.
As per the report, OnePlus has recently released an Android 11-based Oxygen OS 11 Open Beta 3 for the OnePlus 7 series. Several users have discovered that in this version, Fnatic Mode has been renamed Pro Gaming Mode.
(Via)