ProtonPlus, a graphical utility to manage "compatibility tools", has been released in version v0.4.31.

Supported launchers:

- Steam
- Lutris
- Heroic Games Launcher
- Bottles

Supported compatibility tools:

- Steam Tinker Launch
- Proton-GE
- Luxtorpeda
- Boxtron
- Roberta
- NorthstarProton
- Proton-GE RTSP
- DXVK
- VKD3D-Lutris

... and a lot more.

The main installation method is via Flatpak.