The Home Office publishes data on initial decisions on asylum applications by outcome. This data can be found at Asy_02a, of the published Immigration Statistics December 2019 www.gov.uk/government/publications/immigration-statistics-year-ending-december-2019/list-of-tables#asylum-and-resettlement. However, this data is not yet published for the period from March 2020.
During COVID-19, Asylum Operations continue to make and serve decisions on cases where there is enough information to do so. In terms of decisions on negative claims ‘made but not served’, the Home Office does not publish data on what is usually a brief interregnum between a decision being written and then served.