Evolution of the planetary orbital distance (solid lines) in the case of a fast rotator (Ω_in = 18 Ω_⊙), spanning a range of initial values 0.01598 − 0.025 AU. The red-dashed line represents the current orbital distance of TOI-849b. The red-dotted and black-dashed lines show the evolution of a_min and a_corot, respectively. The cyan- and magenta-shaded areas represent the extension of the stellar radiative and convective regions, respectively.