The Oppo smartphone can be connected directly to each other via Wi-Fi Direct, which can be other mobile devices, TV sticks, household appliances, etc. Both devices must have Wi-Fi Direct enabled or be visible.

Android 10 (ColorOS 7.0)
Step 1:  Open the  Settings
Step 2:  Tap on  Wi-Fi
Step 3:  Tap on  Advanced settings
Step 4:  Tap on  Wi-Fi Direct
Step 5:  Tap on  Refresh
Step 6:  Choose desired  Device
  1. Open the Settings
  2. Tap on Wi-Fi
  3. Tap on Advanced settings
  4. Tap on Wi-Fi Direct
  5. Tap on Refresh
  6. Choose desired Device