If we want to download larger amounts of data, such as apps or updates, to the OnePlus smartphone, it is recommended that we are connected to a Wi-Fi network.
It does not matter whether a public or private network is used.
To connect to a Wi-Fi network, the general function must first be activated.

Note: Wi-Fi can also be (de)activated at any time using the quick settings, which also has a positive effect on battery consumption.

Android 10 | OxygenOS 10.0
Step 1:  Open the  Settings
Step 2:  Tap on  Wi-Fi & network
Step 3:  Enable or disable  Wi-Fi
  1. Open the Settings
  2. Tap on Wi-Fi & network
  3. Enable or disable Wi-Fi

OnePlus Instructions