PDF of filament lengths for Hα- (left) and stellar mass-limited (right) samples. Top and bottom panels compare non-weighted and weighted tessellations, respectively, for the Flagship m3 model. Vertical lines indicate the medians of distributions. Shaded regions correspond to the bootstrap error bars. For the stellar mass-limited galaxy sample, weighting of the Delaunay tessellation for the cosmic web reconstruction is not required to obtain a good agreement for the distribution of filaments’ length.