I had two interviews.

The first one the interviewer didn't turn on their camera which I thought was rude.

On the second interview only one of the interviewers turned on the camera.

Both interviews mumbled and didn't have the best microphones.

I was cut off mid sentence when answering questions.

When they asked questions they would look around as if the interview process was a hassle for them.

Generally I found the behaviour to be completely un-professional.

The questions were around core Java, Spring and testing.