Brouwers opacity as a function of the distance from the center of the planetary core at an early and a late stage in the growth of the planet. Left panel: Estimate of the lower limit of the envelope opacity (v_lim = 30.0 m s⁻¹, F = 0.0). Right panel: Envelope opacity that occurs when the default values of Brouwers et al. (2021) are used (v_lim = 2.4 m s⁻¹, F = 0.1). The contributions of the gas, the dust, and the pebbles to the total opacities are featured as well. The migration of the planet is suppressed, the growth of the planet initiates at t₀ = 0.1 Myr, and the disk lifetime is 3 Myr. The incoming pebble flux is fixed to 0.6 M_⊕ Myr⁻¹, but can still be lowered by volatile recycling in the planetary envelope. Apart from that, we use our standard parameters (see Table A.2). After 0.2 Myr (3.0 Myr), the planets have a mass of about 0.05 M_⊕ (1.5 M_⊕).