@midlifecrisis007 schools vary massively in their approach to UCAS predictions. At our school they predict "what you would get on a good day", which is what the TAGs are expected to be this year. Some schools don't like predicting A*s, another local school asked students what predictions they wanted and have them those of they were reasonable!
Who knows whether the grade inflation will end for our lot. It shouldn't because a lot of them have missed out on so much teaching that they will get lower marks, so for them the grade boundaries should go down. Others have barely missed out at all, but if you have exams, you have to have grade boundaries, and to be fair to the disadvantaged, the ones who have not missed out will end up with higher grades than they would have got in a normal year. There is no right answer.
I assume you know that medicine has been a year like no other! Significantly more applicants with lots of 2020 and 2021 high grades, on line interviews, some of the medical schools like Birmingham changing the scoring system to make it a "brave" choice for candidates without perfect scores from a normal background. Best not to choose 4 places to firmly until after UCAT and make sure you really understand the shortlisting algorithm they use so no choice is wasted.