Which OSes support pushing proxy to client?

[zub0r]

https://openvpn.net/faq/can-an-openvpn-server-push-proxy-settings-to-an-ios-device/

The article mentions that pushing a proxy works on iOS and I've managed to get it working on Android client. Which OSes support this feature?

Looks like the default Ubuntu 20.04 openvpn client does not. Thanks.