It used to be the case that there is only a single UK government.
The local governments (Scotland, Wales, NI) are formed no more than ~20 years ago, and are in charge of local affairs such as healthcare and education.
There is never an England local government, but effectively the UK government only have to deal with England with regards to local affairs.
Wouldn’t it be fair to say that the UK is synonymous with England in this case?
Exhibit A, that I have at hand. Rainfall gauges for only England using the UK domain:
https://check-for-flooding.service.gov.uk/rainfall-station/2...
(A bit over simplified, of course)