Panasonic FZ1000 II has a 20.0MP 1″ (13.2 x 8.8 mm ) sized BSI-CMOS sensor and features Venus Engine processor. On the other hand, Canon RP has a 26.0MP Full frame (35.9 x 24 mm ) sized CMOS sensor and features Digic 8 processor.
Canon RP's sensor provides 6MP more than Panasonic FZ1000 II's sensor, which gives a significant advantage in real life. You can print your images larger or crop more freely.
On the other hand, please keep in mind that Max sensor resolution is not the only determinant of resolving power. Factors such as the optical elements, low pass filter, pixel size and sensor technology also affects the final resolution of the captured image.
Below you can see the FZ1000 II and EOS RP sensor size comparison.
Sensor Size and Resolution Comparison image of Panasonic FZ1000 II and Canon RP Cameras
As seen above, Canon RP has a 7.4x Larger sensor area than Panasonic FZ1000 II. 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.