Notably, for the Gaussian-disordered case with N = 2 (Fig. ), the collapse of the UP and LP peaks becomes much more linear until their collapse at ∼ 4 σ / Ã0 compared to the slower collapse occurring at 10 σ / Ã0 for the single-molecule case (Fig. ). Thus, moving from the single-molecule strong coupling to the case of a few-molecule strong coupling, the collapse of the UP and LP spectral features occurs much more rapidly with increasing molecular disorder. This observation can be explained by the fact that the two molecular transitions can both cause a splitting with the photonic DOF but at a weaker magnitude. Recall that for N = 2, the single-molecule coupling strength is scaled down by 1/ √ 2 to keep a fixed Rabi splitting at zero disorder. Thus, in the presence of disorder, the collapse of the UP and LP features occurs more rapidly due to the weaker single-molecule coupling strength. As such, this effect may already be evidenced by few-molecule plasmonic experiments if the number of molecules can be rigorously constrained to one or a few (2-5) molecules. Additionally, the UP and LP spectral features again exhibit a slight broadening at weak disorder before the collapse.