Many people including cancer patients, people on immunosuppressive medications, transplant recipients, people with primary and secondary remain extremely vulnerable to Covid, even after vaccination. For them lockdown has not ended and if anything, it is even worse than 2020 as COVID-19 infections are very high in the community. Some immunosuppressed people have barely been outside since 2020 and the psychological distress is enormous.
I'm not sure if people realise but an antibody treatment (Evusheld) that would prevent them from being infected was authorised by the UK regulator authority (MHRA) in March this year. Despite the fact that the evidence for this treatment is greater than it was for the COVID-19 vaccines (when they were rolled out) it is still not available in the UK (privately or via the NHs) even though it is available in 32 other countries including the US and many European countries. This is because the UK government have not bought any. There doesn't seem to be much publicity about it and I know many immunocompromised people feel very forgotten.
bloodcancer.org.uk/news/leading-charities-and-clinicians-urge-government-to-secure-evusheld/