These "Spaziergänge" are an unholy mixture of racists, anti-democratic groups, anti-vaxxers and lots more.
The far right has found "new friends" in the people critizing the Covid rules of the government. They are now marching side by side, obviously trying to make their far right positions look "not that bad" by blending in with the others.
Yesterday they were marching against immigration, today it's Covid.
edit: Oh, and they are organizing and spreading misinformation via Telegram. Also there's your obligatory dose of self-justice and murder calls against politicians involved.