Brands

Steps

OnePlus

Settings->Battery->Battery optimization->select OnePlus Connect->select Don't optimize

OPPO/realme

Settings->Battery->App battery management->select OnePlus Connect->turn on Allow background activity

vivo

Settings->Battery->High background power consumption->select OnePlus Connect and turn on the switch

Xiaomi

Settings->Apps & notifications->click SEE ALL APPS then enter App info->select OnePlus Connect->Advanced->Battery->Battery optimisation->switch to All apps->select OnePlus Connect and select Don't optimise

Samsung

Settings->Apps->select OnePlus Connect then enter App info->Battery->Optimise battery usage->switch to All->select OnePlus Connect and turn off the switch