So 2 years ago, I applied as an engineer, I had to go through 2 screenings. And also a one hour mechanical aptitude test. Then an onsite interview. Which also another hour long. And I was told there may be one more interview with the CEO.
Throughout the whole time, I was waiting to see if I made it through the end. I kept asking for updates, and they kept delaying, making excuses, oh the CEO is Out of Office, etc etc. And then they completely ghosted me.
I would say the company is utterly unprofessional. You could sniff the culture was bad, and I wouldn't apply to this company, unless you really needed to.