Left: Swift-UVOT UVW2 band light curves from Jacobson-Galán et al. (2024b) for SNe II with (solid red lines) and without (dashed blue lines) early-time IIn-like spectral features. Model light curves are shown for mass-loss rates of 0.1 M_⊙yr⁻¹ (circles), 0.01 M_⊙ yr⁻¹ (stars), and 0.001 M_⊙yr⁻¹ (squares). Varying model CSM radii of 2, 6, and 10 ×10¹⁴ cm shown as grey, magenta and cyan symbols. Low kinetic energy model (E_kin = 6 × 10⁵⁰ erg) with varying mass-loss rates are shown as orange symbols. Right: Optical spectra of SNe 2013fs (red), 2020pni (yellow), 2022pgf (blue) and 2018zd (green) from the SN II sample compiled by Jacobson-Galán et al. (2024b) compared to best-match spectra (black) from current model grid at a similar phase. All models shown have consistent IIn timescales to the SNe being compared.