Cost of painting interior walls/ceiling

Our offer is as follows:
Filling/sanding from q2 to q3 = €8/m2
Primer = €0.91/m2
Fleece + 2x painting (white) = €13.94/m2

So a total of just under €23/m2 for the walls

For the ceilings, it is €4/m2 for the joints and the same price for primer and fleece

Additionally, partial corner protection rails and preparation of a lightweight wall are added

All prices net

Is a painter's fleece different from a fleece wallpaper?

Basically, the same is meant by this, although there are different types of nonwovens and materials.

Painter's fleece can also be what is rolled out on the floor for protection.

Non-woven wallpaper can also be patterned wallpaper made of non-woven material.

Better to ask precisely.

Hi!
That also seems a bit too expensive to me. We had an offer included in the first house offer for:
Spackling all walls and ceilings (Q3, since Q2 is already included in the construction service description), sanding, and wallpapering with background fleece,
afterwards the wall and ceiling surfaces receive an opaque white coat of paint with a dispersion paint.
This applied to all surfaces except the utility room, in a 152 m² house. And the offer was around €14,900 gross.

We have now decided to commission a regional provider. In response to my tender: 190m2 living area Substrate: Q2 or smooth formwork Q3 putty, ceilings and walls covered with painter's fleece and painted opaquely in colors of category 1 there was an offer for just under €10,000 net - that is indeed significantly cheaper.. Thanks for your tips!