Use APKPure App
Get WiFi Connect old version APK for Android
WiFi Connect plug-in for tasker.
Notice: On Android10(API 29 and above), this app does not work.
It seems impossible to implement the same functionality.
I am trying to implement a similar feature but have not found a way yet.
WiFi Connect plug-in for tasker.
Select Configured WiFi network and connect it.
It is named "WiFi Connect" and is included in the "Plugin Action".