Barclays Technical Project Manager interview questions

Really disappointed after going through 5-stages (application, online test, and 3 interviews), the hiring manager did not have the courtesy to let me know I had been unsuccessful. I had no reason to think I wasn't in the running and I didn't receive a phone call or an email, and only found out after checking my career portal online. I was hoping for a bit more decency than being ghosted after a 5-stage interview process after 2 months. I get it, they've got 100's of applications and you cannot get back to everyone, but surely you could send a quick email to those who have gone through the whole process and were in the final stages. The interview did not follow any formal Barclays interview framework; they were not formed as competency questions and did not follow the RISES evaluation framework (that I had studied intensively). The questions were poorly framed and having spoke to 5 different people throughout the process; it seems like they weren't well prepared. One interview, their connection kept dropping out and audio was very poor, which was very off-putting.