No its a third-party applications but many people use it so i guess you can trust it
Try oxygen updater app on play store you will get.
Otherwise wait for your push it will take around a week or two as it is a staged rollout
Rolling back to android 10 , i have waited enough for beta 3 to fix the frequently disconnection of wifi
Still didn't got beta 3 on OnePlus 7 atleast share some updates with us
Why nord is already on open beta 3 and oneplus 7 is still on open beta 1.
Just because its still selling in market?
There is no android 11 update , its been a month since oneplus 8 got android 11 and oneplus promised for atleast 1 beta update every month and last...