Here is the reason why I upgraded my camera. I filmed basic test walking with two cameras on gimbal same time so you could see how both cameras work in low light.
My new setup is also lighter, more compact and much faster to prepare. Is it worth its money? What is your opinion?

GH5 is still good but in some areas maximum ISO is not enough.
While Sony is getting noisy too you still can see something, sometimes it can see more than naked eyes. It’s still can be limited in settings to keep image darker but without such noise.
In the end I tried autofocus. While Sony is still capable to autofocus I’m not going to trust it and continue using mostly manual focus.

Camera1: Sony FX3
Settings: 4K 60p HLG3, 1/100, MF
Camera2: Panasonic Lumix GH5 through Ninja 5 recorder with ProRes HQ
Settings: 4K 60p HLG, 1/100, MF
Lens1: Sony 1635z F4
Lens2: Lumix 8-18 F2.8-4
Stabilizer1: DJI RS2
Stabilizer2: Beholder EC1
Mic:
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