For ProtonVPN as an example: you can go to the downloads section and download the wireguard config you want and then import it from the wireguard gui.
For me, I would never use other inferior VPN clients after knowing how efficient, supported and developed are the official Wireguard gui are.
Other providers who provide configs:
https://mullvad.net/en/blog/introducing-defense-against-ai-guided-traffic-analysis-daita
Mullvad’s client is open source and has some serious features over stock wg.
Also windscribe is probably being exploited by the NSA, microslop locked the lead dev’s account at the same time as wireguard’s and veracrypt
Did they get their account back but not the others? What makes you suspect that Windscribe specifically is compromised?
Those three were all locked out within a day. Attack was probably some specific target. The timing is just super suspicious