Using https://www.arbeitnow.com/tools/salary-calculator/germany and https://smartasset.com/taxes/income-taxes#9jiRJIN31w
In Berlin, 200k nets you 113k after taxes
In California, 200k nets 132k after taxes
That is 43.5% vs 33%
But there are differences in sales taxes/VAT, property taxes (and deductions for such), mortgage interest deduction, etc.
A $1M mortgage loan at 3% could reduce your taxable income by 30k, saving you almost 10k in taxes per year in the US.