i am under windows 10. How i setup VPN connection for all my traffic ?

I use Opera developer. i put VPN "on" and it doesn't show any ip adress nor virtual localisation. When i start "where is my ipadress, it indicate my real adress.
thank you for your help (and excuse my english,)

Hello,
i want to configure Opera with Qwant by default. So I have created him in the page but Qwant do not appear in the list
Thanks

Hello,
why the forum don't propose french language ?
Thanks