Only <5% of deaths accounted for by under 60's, and the number drops exponentially as you go down the age range the under 40's <0.5%
Many articles have been published about the impossibility of comparing infections and deaths in different countries, one thing is they all count Covid ( 'with' and 'from' ) deaths differently ( China does not seem to count anything ). The WHO did warn in March 2020 the the UK should expect large number of covid deaths because 'the NHS is so good at keeping chronically ill older people alive', a bit of a backhanded compliment really, but as a nation we are not very healthy anyway.