The only covid GUIDANCE there should be is:
• Get the vaccine and booster if you feel comfortable to do so.
• If you don’t feel well, stay at home.
• If you have any symptoms that could be covid, get tested.
• If wearing a mask makes you feel better protected, wear one.
We're now at the stage of this pandemic where it's safe to assume with 100% certainty that whatever Boris 'U-turn' Johnson promises about anything actually means the complete opposite will happen.