I made some enquiries about a year ago to see what income my wife could expect from the UK Gov when I die.
As she is 32 years younger than me, she does not work, she will in effect get a lump sum of almost northing and then nothing more, ever. There is no widows pension any more.
At present we live in Spain and as my dependant she gets full national health cover. That will continue for just ONE YEAR after I die, and then NOTHING.
I don't know how a couple living in UK will fair but I think it would be the same.