Read the sportrac "figures" closer - their projections don't have salaries allotted for arbitration-eligible or pre-arb players. If you use their figures, Anderson, Matzek, Pache, Riley, Soroka, and Jacob Webb plus Contreras or A-Jax (if they wind up as the backup C) will all be playing for free in 2021.
https://www.spotrac.com/mlb/atlanta-braves/payroll/