I see Mullvad's move away from OpenVPN mentioned a lot, but not the reasons for it. So for anyone like me who is reading this and curious, here's a link to why they decided to move to Wireguard

The vast majority of VPN providers run on openvpn, unless they're very modern and have explicitly switched to something like strongswan or wireguard.

As far as I know, Private Internet Access will continue to offer .ovpn files.

I am still currently a customer, and I've had no issues with them, however be warned: they have a bit of a sordid history regarding who eventually bought them (Kape Technologies). Also, they're based in the US, which has been sliding towards Digital ID enforcement and fascism.

Windscribe

Yes. You can get openvpn configs from proton.

For those out of the know: what's the advantage of using open VPN?

Airvpn

Surfshark does too

So do many others, I'd assume

so i should look for the ones with Wireguard-conf from the VPN-comparison table found here?

https://lemmy.dbzer0.com/post/55251807

https://lemmy.ml/pictrs/image/b73ce57d-97db-46bf-86c3-535dbbd4b764.png

PIA does

CyberGhost VPN does

NordVPN works very well for me. I'm coincidentally working on setting up an openVPN with their guide, and so far it has been clear and easy.

Nord https://support.nordvpn.com/hc/en-us/articles/19683394518161-OpenVPN-connection-on-NordVPN