Recently, the discussion of OA publishing has been dominated by the consideration of potential effects of Plan-S on scholarly publishing. Part of the debate centred on the academic freedom and autonomy of researchers to self-select in which journals they publish their findings, as journals labelled as Hybrid under Plan-S are no longer eligible for publishing (except in cases where publishers agree to transformative agreements on their portfolios). The publisher’s own choices on opening publications, through Bronze OA, is also in need of further debate. With that in mind, this study made a first attempt to understand motivations behind Hybrid and Bronze choices, especially in face of Plan-S restrictions.