Arm interview questions

I gave an interview for a Cloud Engineer position at Cambridge - First call is a screening from HR. Another one was a technical interview from - cleared both of them easily. The third round was a take-home coding test in C++ - they needed specifically C++. I completed that and sent it in 1-2 days to HR and I was told Manager would review it and then I could expect some feedback. No response from them for weeks. Got Ghosted and never heard back from them.