Novuna Front End Developer interview questions

Initial phone interview asking about previous role and experience followed by invite to face to face interview. Face to face with 2 devs, v nice people. Went through competency questions around company values but they weren't really interested in that and quickly moved onto technical questions and I had to show some code that I had done in my own time. Discussed that and then interview was over. bout 70mins. Didn't get an offer but had strange feedback that it "felt like i was pre prepared"? Who doesn't prepare for an interview?!