After I did some more googling after I posted the information below (beyond the more tag), I suddenly found this!
“To make it easier for drivers who need to update their photocard licence with a new photograph at the end of the 10 years validity, photocard driving licences that expire between 1 February 2020 and 31 August 2020 will be automatically extended for a period of 7 months from the date of expiry.”
How come DVLA on Twitter was not aware of this?
How come this information did not show up before or during the online renewal procedure?
And how come the post office was not aware of this either? My license got snipped with scissors and discarded and I was told that as of the next day, I would be breaking the law if I drove.
(For many people, their driving licence is their main ID.)
How come that apparently this information is not that easy to find on the web? (Failure to submit to the search engines at the time? But then, it is not that easy to find on the DVLA website either.
Was the information announced retroactively, such as on 4 June, perhaps? https://www.gov.uk/guidance/dvla-coronavirus-covid-19-update#history)
(By the way, it also explains why I didn’t get the renewal reminder. Sorry anonymous.)