David Miller, thanks much for the write-up! Similarly, I found the Olympus TG-5 very fiddly for use while whitewater kayaking. Too many buttons, easy to set wrong mode.
I see that DxO PhotoLab support the FZ1000 (II). I'll find some high ISO RW2 raws and see how well shots can be improved. You compared G7 with FZ1000, thanks also for that. [Added: yes, ISO 5000 is a bit less noisy and much sharper with PhotoLab Deep PRIME XD.]