We were in London for the weekend before the Queen's funeral, with people queueing up to 16 hours to see the casket. We crisscrossed London several times attending Oxford University and Imperial College open days. Never saw a queue in that whole time, except at an ice cream shop round the corner from South Kensington. Trump would have called it fake news. I like to think it is a compliment to the organisation of the whole thing that it didn't interfere with the rest of London getting on with their lives.
We weren't there for the funeral proceedings, so never made it to any specific condolence settings. We came across this one just behind the Royal Albert Hall, which was very nice.
God save the King!