Are you living and working in the foreign country? What is your income source for the 4 months in 2024?
If your income was from US sources, there is no reason to amend your return as the income will all be taxed the same. There is not a tax break for US Citizens who live outside the US on their US income.
You would not meet the Bona Fide Residence test if you left in 2024 and are moving back in 2025 because you did not stay in the other country for a full calendar year.
**Say "Thanks" by clicking the thumb icon in a post
**Mark the post that answers your question by clicking on "Mark as Best Answer"