Morphological parameters and deviation in spatial orientation for non-relaxed clusters, comparing gas density and potential. The semi-transparent areas enclose the quartiles of the cluster sample, while ‘med’ and ‘thr’ denote whether regions occupied by substructures are replaced by the median or threshold approach (‘a’ and ‘b’ defined in Sect. 2.2). The label ‘raw’ denotes the non-processed original data set.