Danfoss Lead Engineer Salesforce interview questions

1 round - HR 2 round - Interview with practise head 3 round - Technical interview All 3 round very well. After 3rd round tried contacting HR after 4 weeks they said they will need to 2 more weeks as more candidate are interviewed. After 4 weeks I follow up, they didn’t respond and after a month they send a email they found candidate with matching role. This is too bad no feedback and no transparency in the process. Worst experience.