After 2 interviews that went really well and pretty professional, they didn't even send a "thank you for your time but we've decided to move on with other candidates" generic email.

The fact that all the interviews were conducted on-site raised an initial red flag. tl;dr- my interaction with the interviewing team was marked by their lack of preparation , a lack of respect for my time, and a rather glitchy system. I was asked to prepare a presentation. However, the time and effort it took to create this presentation was significantly extended due to the numerous glitches and unresponsiveness of their platform. The system had errors even as I was presenting. Additionally, it became quite evident that the interviewers themselves were not prepared for my interview, further complicating the process. While preparing for this interview I got a glimpse into their customer experience with the platform- frustrating. After investing more time than I should have in the presentation, mainly due to the platform's instability, I received a rejection email. When I asked for feedback, the response was disappointingly brief, offering no constructive insights or lessons, only stating, "The presentation wasn't good enough."