:wave Kenneth here. Linux support is on the roadmap, and can be supported via https://libimobiledevice.org/ but not all functionality might be possible, as libimobiledevice isn't 100% on pair with Apple's own driver that's provided via iTunes on MacOS and Windows.
Would love to get some help testing this as I'm not a Linux user myself. Shoot me an email at kenneth@auchenberg.dk if you are interested!
Seconded. I've been working on a webapp that's meant to work on iOS and I haven't figured out any way to debug it from my Linux machine, even with my phone being jailbroken.
Side note, if you just want to test with WebKit: GNOME Web (sudo apt install epiphany) uses WebKit internally. It doesn't have a responsive design mode or even a way to change the user agent, but it does have the exact same rendering and JS engine.
Would love to get some help testing this as I'm not a Linux user myself. Shoot me an email at kenneth@auchenberg.dk if you are interested!