Immersive Account Manager interview questions

Terrible process. Was contacted months after submitting application. As I was still open to new career prospects I Scheduled and attended first round interview only to be ghosted afterwards. No feedback whatsoever even after sending my own follow up email. I can understand you can’t apply to every unsuccessful initial paper application. However, I think it is common courtesy to respond after first round interview indicating if progressing to next round or not. Not professional conduct at all from the hiring team.