Question: What are the guidelines for returning to the UK during the COVID-19 pandemic?

Answer passage (source: UK):
page_title: Guidance Waiting to return to the UK during coronavirus (COVID-19)
section_headers: Checklist if you are waiting to return to the UK
section_content: If you cannot currently return to the UK:

follow the advice of local authorities, including local measures to help minimise your risk of exposure to coronavirus
find accommodation that is suitable for your needs
check your visa, if you have one for the country you’re in. If it is due to expire, visit our travel advice and read the ‘staying during coronavirus’ section. The Foreign & Commonwealth Office has negotiated with local authorities in some countries to automatically extend visas if you cannot return
contact your travel insurance provider to check your health cover. Most providers will look to extend single trip cover for up to 60 days if you are making every effort to return home
read our travel advice of the country you’re in, in particular the ‘staying during coronavirus’ and ‘return to UK’ sections
sign up to email alerts for the country where you are, so you are notified of any updates

If you need urgent consular help, contact your nearest British embassy, high
commission or consulate.

Reviewer feedback on this answer:
This does not answer the question. This information is intended for British citizens who currently cannot return to the UK. It does not contain any guidelines for returning to the UK during the Covid-19 pandemic as asked in the question.
This give guidelines for staying abroad and does not address returning home.

Reviewer ratings:
Bad
Bad

Answer passage (source: UK):
page_title: Guidance Travel advice: coronavirus (COVID-19)
section_headers: Returning to the UK if you’re travelling abroad
Return travel and your health
section_content: It is a personal decision whether to travel back to the UK. You should
consider your individual circumstances and the range of information available
to you, including travel advice,
to decide what is right for you.
If you are concerned about risks to your health, for example you are following
UK or local guidance to shield or self-isolate, you may wish to seek
professional health advice locally or from your usual doctor in the UK.
Read further advice on avoiding infection during your journey home and
preventive measures to take on your
return.

Reviewer feedback on this answer:
This answer contains no information on guidelines for returning to the UK during the Covid-19 pandemic as asked in the question. Instead, it provides information and recommendation on whether or not a person should travel back to the UK when abroad during the pandemic and further health and safety advice.
This offers some guidance for returning to the UK with links to further advice.

Reviewer ratings:
Bad
Acceptable

Answer passage (source: UK):
page_title: Guidance Waiting to return to the UK during coronavirus (COVID-19)
section_headers: Healthcare support
section_content: Your health is important whilst you are away from home. For advice, visit our
healthcare support guidance.
You can also read our guidance on wellbeing and mental health abroad during
the coronavirus (COVID-19) pandemic.

Reviewer feedback on this answer:
This does not answer the question. This is an information regarding healthcare support and wellbeing and mental health support for British citizens who are abroad during Covid-19 pandemic.  It does not provide any information on guidelines for returning to the UK during pandemic.
This offers information about how to stay healthy while abroad, but does not address returning home.

Reviewer ratings:
Bad
Bad