Hi. I took the Munich, Salzburg, Venice tour in 2017, and it started on Sun, Dec 10. That was one of the main Krampuslauf days - probably the biggest one. It wound through Marienplatz. I was late for the start of the tour because I wanted to be at that parade. Really, nothing special, I thought now and then, though it was kinda great standing outside Der Alter Peter in the sleet with some locals. Ha, when some youths barged in and stood in front of me, I made clear I had been there first. They were nice enough to move aside.
Now last year, on Dec 5, 2019, I was at the Krampuslauf in Hallstatt. Great fun, more local, not such a big event. The parade in Munich reminded me more of a mini-Mummers parade in Philly - meaning it is orchestrated and there are defined groups that are staged. If you happen to be there, great, but... well, I would not go to the trouble of being there again for the event.
If you really want a Krampuslauf, consider something smaller like Hallstatt. Look for videos on youtube. PS, Krampuslauf is always Dec 5 in Hallstatt.