Hey
Glad you are thinking of applying!
1.
Achieved degrees vs predicted. Here is a link to the FAQ section of the Ox med sci website for grad med, which answers your query:
https://www.medsci.ox.ac.uk/study/medicine/accelerated/faqs/must-i-have-completed-my-degree-before-i-applyEssentially, the answer is that there is no preference for achieved degree classifications, but if you are applying without an achieved result they may give other aspects of your application more consideration e.g. previous academic performance (A-level, etc), BMAT etc.
2.
Oxford application form: I don't think it has opened yet for 2022 entry, so I could not access the questions. To my knowledge, you won't be able to access questions until the form is released but it is normally done in good time so you will have ample time to complete it prior to the deadline. From memory, I think it was mainly giving the contact details of referees, answering some questions about experiences you've had, and I think there is also space for you to include an Oxford-directed personal statement outlining why you want to apply there (this was optional when I applied).
3.
Interviews: I'm pretty sure most of us had four interviews each (2 interviews at each college, because you get interviewed by two separate colleges).
In terms of advice, I personally found it quite hard to prepare for the interviews because I wasn't sure what to expect - every college is different and will ask a different set of questions so you all end up having very different experiences as applicants. But there are definitely things you can do to be better prepared:
-Really try to relax and make a good impression, appear enthusiastic and happy to be there (first impressions count for a lot in any interview)
-In the weeks leading up, maybe choose some topics of medical interest and read up on them so that you have something to talk about if asked
-You could find some Oxbridge style interview questions online and attempt answering them as you would in a real interview (this could help with your approach on the day if they ask you a question that initially stumps you).
-Always try to think out loud, talk the interviewers through your thought processes
-You might also find it useful to recap some A-level biology (which you may have done a little of already for BMAT prep)
-You could also practice interpreting data and figures in scientific papers as data interpretation is a skill they often assess at interview
Other than this, any prep you've done for other interviews (e.g. MMI-type) may also benefit you at Oxford if you are asked any questions about your experiences, or ethical questions/dilemmas.
See the ox medsci website for further information/stats about the previous admissions cycle and the admissions process in general.
Hope this is useful!