I faced a similar issue — not using flutter_jailbreak_detection, but attackers were able to bypass some basic root checks in a Flutter app I built by hooking public methods with Frida. Once they knew the method name, bypassing became trivial.

While building layered defenses is ideal, I ended up using a free RASP tool called FreeRASP by Talsec. It adds things like root detection, debugger detection, and some tamper protection — definitely not foolproof, but it added a bit more resistance and was pretty simple to integrate.

Totally agree that defense in depth is key here — no single check is enough, but a few layers working together can raise the bar for attackers. Just sharing in case it helps someone in the same spot.