Very mild spoilers follow.
- In Return of the Jedi, Boba Fett falls into the Sarlac pit in ABY 4, just before the rebels attack the second Death Star
- The Mandalorian takes places five years later in ABY 9
In The Book of Boba Fett, episode 4, it is established that the episode takes place after the start of The Mandalorian when Fett finds Fennec Shand wounded in the desert. But during the first three episodes, Fett didn't really do much, other than train with the Tuskens.
Did the training really take five years? Is there confirmation for this from some other source?