Why didn't Brie Larson return???

I have been wondering for YEARS!!!!!! Why exactly did Brie Larson not come back?? One place she said that it was "too crazy on set," but I think that there was something else behind it.....

Anyway, this was the first film I saw her in a few years ago. Been a MASSIVE fan ever since. Glad that she FINALLY started getting the credit that she deserves this year. Her Oscar was OVERDUE. She was not just snubbed by the Academy for her BEYOND INCREDIBLE, PHENOMENAL PERFORMANCE in Short Term 12. She was ROBBED. Glad that she won for her BEYOND INCREDIBLE, PHENOMENAL PERFORMANCE in ROOM though. Been looking forward (and still looking forward) to her upcoming projects. She will be an INCREDIBLE Captain Marvel.