Thorough and respectful. There were two intro interviews followed by a take home exam. The exam ended up in my spam folder and they were very understanding about the situation. The exam was difficult but not extreme. It felt very fair. The final zoom interview had a couple too many people on it and felt a bit hectic but was not bad overall.
For this position, I completed an online application, no telephone, video, or in person interview following the online application process. It was all online on a google form that had a rolling submission date.
One of the labs that invited me for an interview. Instead of talking to me, they asked me to take an exam on paper. Not very friendly. But they did not wasted my time when they decided to move on.