What's involved in the recall 0061520800

My 2022 was in for the 2 year service in December but had to go back in yesterday for this recall.. The garage sort of glossed over it saying it was something to do with the high voltage battery. Anyways they couldn't finish it yesterday saying it was alot more work than they expected, the need to drop the battery out etc etc. I read stuff about the possibility of short circuit and catching fire but not much more detail.

Fine it's no cost and I have a loan car .. But a little worried about just how dismantled the car will be and how it will be re-assembled.