Same in Norway, max marginal rate caps out at almost 50%:
https://www.skatteetaten.no/en/rates/maximum-effective-margi...
There is also a lower rate om capital gains such as stock or real estate, sales (like a VAT), gas tax, vehicle tax, utility tax, phone tax, cable internet tax, etc.
Plus, of course, employers are paying some extra payroll taxes per employee.
Sure in UK and Norway healthcare and University is free, but healthcare is provided by my employer in the states. So for me it is a wash.
But hey in the US I get to pay for the largest army on the planet.
What I would say is that in the US my taxes feel the most "unfair" since my tax rate is sort of the max. Richer people have ways of avoiding taxes and poorer people pay less tax.