The interview time was changed repeatedly, so I never got to attend the interview and therefore don't know what the advantages are.

The interview was scheduled and then the time was changed repeatedly, and the changes were communicated only by text message. In the end, it was changed to another day again on the day of the interview@@, wasting a day off I had specifically taken... Fortunately, I saw the text message before leaving home. What if I hadn't seen the message until after missing the scheduled time? Wouldn't that have meant making the trip for nothing?

I completely understand that the person in charge is very busy. However, whether a company or supervisor respects its employees can be seen in the small things.