T-Mobile Software Engineer interview questions

Received a call from recruiter about a new position. He scheduled a call with a hiring manager and we discussed about some of my past projects, what I would have done differently, if given more time, some questions to test modeling knowledge, some stats-based questions. Afterwards, I had a panel interview where I spoke with 2 engineers, and one project manager. Received coding questions, more questions based from my past projects, tests based on resume (statistics, ML questions). Finally, I had an interview with a director. Had a mix of technical questions and behavioral questions.

VERY VERY long and pointless. Applied in July, took a coding assessment in August, had one domain interview in October, had a second domain interview in December. Got NO response from either. Both interviews went well enough that any other company would have made me an offer, but they decided to ghost me instead. Don't waste your time.