Final answer:
To see a list of all WiFi networks you have previously connected to on an Android device, navigate through Settings > Network & Internet or Connections > WiFi > WiFi Preferences or Advanced > Network History or Saved Networks. This is applicable to Android 10 or newer versions.
Step-by-step explanation:
To see all WiFi networks you've connected to on an Android device, you can directly access this information if your device runs on Android 10 or newer through the settings. For older versions, this may require using a third-party application, which should be approached with caution considering privacy concerns.
To check the WiFi networks on Android 10 or newer: Go to Settings. Select Network & Internet or Connections, depending on your device. Tap on WiFi. Choose WiFi Preferences or Advanced. Tap on Network History or Saved Networks to see a list of networks. Remember that for older versions of Android, you might need a third-party app to view past networks, which poses a risk to your personal data. Always be cautious about the permissions you give to applications.