I saw a completed post asking the Linux app on boot, but I guess it is not the GUI version, or perhaps not the one for Fedora.

For me on Fedora with the GUI version I have to manually launch Proton VPN every time.

By manually launching Proton VPN:
1 - The system remains unprotected for a certain time;
2 - Creates a needless ritual for every session;
3 - Nullifies the purpose of the kill switch.

~/.config/autostart/ , Startup applications or GNOME extensions does not work because the GUI fails to connect during login. Only the kill switch starts correctly this way. A native “start with system” option would solve this.

Right now we have "auto connect" and "start up minimized" but not a "start up with the system"