“…Subduction systems have been studied extensively through both laboratory and numerical approaches, in a Cartesian domain. Several studies have examined how the thermo‐chemical structure and material properties of slabs influence the dynamics of subduction and the resulting slab morphology (e.g., Bellahsen et al., 2005; Garel et al., 2014; Goes et al., 2017; Mériaux et al., 2018; Ribe, 2010; Schmeling et al., 2008; Stegman, Farrington, et al., 2010; Suchoy et al., 2021), with many analyzing the interaction of slabs with the mantle transition zone (e.g., Agrusta et al., 2017; Čížková et al., 2002; Garel et al., 2014; Tagawa et al., 2007). Cartesian simulations have also been used to examine: (a) the role of slab width in dictating the evolution of subduction systems, particularly the shape and curvature of the trench (e.g., Schellart et al., 2007; Stegman, Schellart, & Freeman, 2010; Stegman et al., 2006; Strak & Schellart, 2016); (b) the impact of downgoing plate heterogeneities, such as oceanic plateaus and ridges (e.g., Martinod et al., 2005; Mason et al., 2010; Suchoy et al., 2022; van Dinther et al., 2010); and (c) the importance of an overriding plate (e.g., Capitanio, Stegman, et al., 2010; Garel et al., 2014; Heuret et al., 2007; Jarrard, 1986; Lallemand et al., 2005; van Dinther et al., 2010).…”