Is a passive protagonist at the start a problem?
A protagonist who will not act at the start is the defense working correctly, and what they have surrendered is their say rather than their energy.
If your protagonist won't act at the start of your story, that's not a flaw. Staying put is how they've kept safe.
They put things off, wait to be told, let someone else decide. It usually goes back to something that hurt them. It left a fear, the fear became a belief, and the belief says don't move.
Passive doesn't mean idle. In The Color Purple, Celie works from dawn to dark. What she's given up is any say in her own life.
This part of your story is what StoryDNA calls The Orphan act. Your protagonist has no say in a life that's costing them, until something from outside forces them out.
In The Truman Show, Truman has a full day every day and has never made one real decision. Your protagonist can be the busiest person in the story and still be handing off the one choice that matters.
So the fix isn't more drive. Almost nobody leaves a life that's quietly hurting them just because they decided to. If wanting change were enough, nobody would stay stuck.
Something from outside has to make staying more painful than leaving. That's why your inciting incident should happen to your protagonist, not be something they decide to do.
So don't ask what your protagonist is doing. Ask what they've handed over to someone else. Then write the event that makes staying impossible.