I have a Leica M9-P and it isn’t an easy camera to make photographs in low light.
It can get noisy about ISO 1000. And the lack of autofocus makes it even more challenging at times. But I’m still pleased with the results. However low light plus movement is something I haven’t been able to figure out.
If you aren’t used to shooting with a rangefinder it will take a lot of practice. I also have a few other cameras in my arsenal that I will carry if I know in advance the lighting will be tricky.