Whilst fully accepting the UK covid response has been dismal I don't think you can do meaningful comparisons of countries data as there's too much variation in the methods of stat gathering and also questions on the honesty / reliability of said data.
I suppose excess deaths could be the best view, but even that needs to be normalised due to the UK's ageing population (hence year on year the death rate creeps up a bit)
The most telling month was April when there were approx 40k excess deaths, since then it's gone down dramatically, but even that doesn't tally with the official covid 19 number of deaths reported by some margin, which is in the region of 60-70k. So what to make of it all, well I guess you can't be certain, all you can say is between Q2 and Q3 in 2020 there have been appox 60-70k excess deaths.