After two interviews, they ghosted me, with no reply from HR or other interviewers.

One of the interviewers told me that I was a good fit for the role and that they would hire me. And then they started ghosting.

Also, they were constantly changing interview times, which is a bad sign. This means they don't have clear communication between them.

Avoid such companies.

Asked about basic system design and Salesforce-related questions. Then, in the second interview, asked behavioral questions.