I think the biggest problem the RAF currently has - or will have - when it comes to manpower, is the current halt on recruitment. Before the whole lockdown started, the RAF was down 6% on manning. Add to that the approximately 48 people who leave every week, which is 350 people and counting. The manpower shortage will only get worse.
I appreciate that courses are still starting, but all applications to join are hold, meaning there will be a massive backlog to get through when recruiting resumes. This may have an impact on future basic courses/IOT, with courses have zero candidates loaded.