Have Q2 smoothly plastered onto Q3 or use painter's fleece

That probably depends on the point of view. The fact is that scratches/scuffs always leave a larger damaged area than with nonwoven fabric, because material is quickly removed, also in Bavaria. This happens less quickly with nonwoven fabric.

Definitely fleece. We have not regretted it so far. Goodbye visible settlement cracks.

Q2 to Q3 makes little sense, if anything Q4.

Under fleece, you also need at least Q3, otherwise it just looks shitty.

I agree with Lumpi. Maybe it makes sense to have it puttied and sanded first, look at the result and then decide whether that is enough or if you’d rather have the fleece applied. I have fleece on all the ceilings and on the walls in the ground floor. It looks great but unfortunately it is also somewhat sensitive.

That depends entirely on the fleece. You don't have to use 25g.

For our next house, I would DEFINITELY have Q3 plastered and sanded and then [Malervlies] applied! We are so dissatisfied with our current Q2 that we will gradually work through the rooms ourselves over the next months/years.