Devon and Daki were in the temple during Order 66
Theory
In the episode ‘Night of the Hunted’ Daki explains Order 66 to Captain Lawson as ‘My Padawan and I barely survived what could only be described as a purge of the Jedi Order.’
That’s very specific, which likely means they saw the purge firsthand and were in the Jedi temple when order 66 happened and barely managed to escape.
And we have seen Jedi were able to escape the purge on coruscant like Kelleran Beq and Grogu in the season three flashbacks.
This would also explain why Devon would have a hatred for the empire and not fear like other Jedi survivors.
She witnessed the Jedi order be wiped out in front of her, have her future robbed from her and now craves an unfulfilled destiny as Maul described it.