Can I add a VPN client to my OpenVPN server so my users don't browse on Internet with my server IP address?

I currently have an OpenVPN server running on a machine. My clients are able to connect to this VPN in order to access our internal apps and have the ability to browse internet.

I don't want my VPN users to browse with my server public IP address (from the websites point of vue).

So, is there a way and what is the best way to install an external VPN in order that the HTTP queries of my VPN users don't use my public server IP address ?

OS : Ubuntu 18.04 (bionic)

Thank you