Based on 9,414 real tournament jumps: the pros stay in free fall until the glider opens (~105 m above the ground). The dotted line extends your bus line to the map edges.
Estimate from 9,414 real tournament jumps on the main island: jumps on this island have not been measured yet. The dotted line extends your bus line to the map edges.
Based on 661 real jumps in 30 Slender Man Cup games on Nitemare Island: the Reload bus is slower and lower, a straight drop lands in ~8 s. The dotted line extends your bus line to the map edges.