I'm well aware that this meter is down-market for EEVBlog, but work with me for a moment.
On the 200M Ω scale, with either the jumper clips or the test probe leads shorted together, I see
9.96 MΩ on the display.
The manual says two things, and presumably they are additive ...
Range 200M Ω
Resolution 0.01MΩ
Accuracy ±5% (reading-1000)+10)
At 200MΩ range, the test leads are shorted and the displayed value is 1000 digits. To ensure the accuracy, please subtract this value from display reading.A '1005' chip resistor (in theory 10MΩ 2512 footprint) reads 19.92MΩ
Is all of that telling me that our ability to come anywhere near 0.0MΩ is non-existent and what you get is what you deserve ?