@Heron26 For example, it was only 10 questions and only one was about finding out about me. No questions about the past roles ive done or my qualifications. It was just a very brief one. The rest were 'what would you do' scenerio type questions and a few to see what knowledge I have about certain things relating to the role.
Experienced interviewer here. This is all normal, and good practice.
You don't want to waste the candidate's time or your own, so you don't ask about something which is on the CV or application form (e.g. qualifications).
The 'what would you do' questions test you on more realistic situations not necessarily shown by your qualifications or certficates alone.
And, you certainly don't spend time 'finding out about me', because sharing superfluous information (e.g about family, kids, hobbies) could be used to claim discriminatory treatment later on. They're also irrelevant to a job.
It sounds fine, to be honest, and 90 minutes for everything is actually very generous these days. Good luck with your application. Also, if you're not successful, don't forget to ask for some brief feedback.