Evolution of the semimajor axis a, metal mass M_z, and envelope mass fraction M_env/M for our fiducial model in disks with and without PEW effects. The dashed line in panel a indicates that the growth of the core ceases at the pebble isolation mass if mutual collisions are ignored. Bottom panels: gas accretion rate at r = 0.3 au. (a) Without PEW, F_pb, fid, (b) with PEW, F_pb, fid.