Panasonic ZS100 has a 20.0MP 1 (13.2 x 8.8 mm ) sized MOS sensor and features Venus Engine processor. On the other hand, Leica Q has a 24.0MP Full frame (36 x 24 mm ) sized CMOS sensor and features Maestro II processor.
Below you can see the ZS100 and Q Typ 116 sensor size comparison.
As seen above, Leica Q has a 7.4x Larger sensor area than Panasonic ZS100. Larger sensors give photographer more control on the depth of field and blurry background compared to smaller sensor when shot in same focal length and aperture.