Back You can find the latest Covid-19 guidance here which is regularly updated.
https://www.st-andrews.ac.uk/coronavirus/
If you often wear a Sunflower lanyard (see: A symbol for non-visible disabilities (hiddendisabilitiesstore.com) ), you may wish to continue doing so whilst you are at university. The lanyards can help you to communicate to people who you are meeting for the first time that the may need some extra support and/or that would appreciate a bit of extra space.
You can find details of the St Andrews ‘Covid code’ here: The Covid Code – Coronavirus information – University of St Andrews (st-andrews.ac.uk)