Candidate High-Mass Companion in DESI/Gaia DR3 Data – Seeking Feedback on Methodology - Gaia DR3 3802130935635096832

I ran a script on DESI data, found a star with 146 km/s RV amplitude, flat TESS light curve, and no GALEX UV. Here is my Python code. Am I missing any obvious false positives?
SOURCE GitHub - simulationstation/DESI-BH-CANDIDATE-SEARCH: DESI-BH-CANDIDATE-SEARCH
Full paper is at DarkCompanion.pdf on the repository
Feedback would be greatly appreciated.