Oxford Biolabs interview questions

After applying via Linkedin I was messaged by the CEO advising that I was included in Stage 2 of the interviews (up to 8 candidates) and requested a submit a short video answering a couple of questions. It was highlighted a couple of times that only a few candidates were invited to stage 2. Candidates were also encouraged to ask questions. I had a few questions prior to submitting a video which were ignored, once the video was submitted I did not receive any feedback despite chasing, which was disappointing as I am personally a huge fan of the brand and its products. Anyone who is applying for jobs knows how time-consuming the application process as well as researching the company and preparing for an interview is. The least the company could do is acknowledge and give little feedback.