I came across all the not-so-great reviews regarding DD's interview process on Glassdoor during my interviews, and interestingly, came out of the process with the same bitter experience.
1) The process will make you feel like you are one among hundreds or thousands of candidates who are put in the pipeline by the recruiters whose KPIs are probably connected to just making candidates attend the interviews. Recruiters (those with email @ext.doordash.com) talk and behave like machines. Mine rescheduled the screening call just minutes before the call, then came late in the rescheduled call and barely talked for 10 minutes. In the entire process that went on for 5-6 weeks, there was minimal comm from the recruiter, I had to follow up for the update multiple times, didn't even feel like the recruiter had any interest in me getting selected. It felt like they just have to provide candidates for the interviews and nothing else.
2) One of the 5 interviewers did not even switch on her camera and was clearly multitasking during the interview. This completely threw me off. She asked questions that clearly showed that she didn't go through the deck I had created on the business problem.
3) One of the interviewers rescheduled the interview just minutes prior to the interview.
4) There is a lot of work to be done, with no accountability on DD's part to reciprocate. I went through 5 interviews and a recruiter screening, spent days and weeks preparing for the interviews and working on their case study, and at the end - crickets. Upon follow up I got the detailed email that detailed how their policy doesn't allow to share feedback.
5) There are some very young interviewers who may have grown with Doordash's growth but interview like machines, with FAQ type questions.
Overall, from the outside it feels like there is a mass attrition and hiring going on all the time at Doordash. I was desperate, hence I invested all my time to the process, but when I got another shortlist later from DD, I decided not to pursue it because I could not afford to give everything when I can't see any reciprocation.