France is on the amber list for entering England. From 19 July anyone arriving from France (including those transiting through France) to England must continue to quarantine for 10 days at home or in other accommodation, even if they are fully vaccinated against COVID-19. Check what you must do to enter England, Scotland, Wales or Northern Ireland.*
i think you still have to isolate with 2 jabs no? amber +.
My old man just had to isolate when visiting uk
https://www.gov.uk/foreign-travel-advice/france
*Returning to the UK
France is on the amber list for entering England. From 19 July anyone arriving from France (including those transiting through France) to England must continue to quarantine for 10 days at home or in other accommodation, even if they are fully vaccinated against COVID-19. Check what you must do to enter England, Scotland, Wales or Northern Ireland.*