“…Because these trends have only started to appear recently, there is little insight into their evolution and characteristics. Differences according to migrant generation, first or higher-order partnerships, and differences between cohabitation and marriage, for example, could be expected but have not yet been studied (Hartung et al 2011;Dupont et al 2019b;Lievens 1999). Furthermore, it remains unclear to what extent changes observed in earlier studies have continued to carry on.…”