@MomentSeeker
2019: File MFJ
2020: FIle Single (assuming not remarried and has no children thay may qualify you for QSS - Qualified Surviving Spouse status)
2021: Same as 2020
2022: File single (assuming not remarried)
you can test your scenario at the IRS website:
https://www.irs.gov/help/ita/what-is-my-filing-status
