On the same 60 000 € gross, a worker takes home roughly 1534 € more per year in Portugal than in Germany. That gap reflects the tax structure alone — before rent, healthcare, or savings behaviour come into play.
Housing is the first multiplier. Portugal has high rent pressure, while Germany has moderate rent pressure. That means part of the higher take-home in Portugal can be absorbed by rent if you land in a major city.
Healthcare and pensions go in the opposite direction. Portugal runs a universal healthcare model — SNS universal healthcare with low patient fees. Germany uses a public model — Statutory health insurance (~14.6% split with employer) gives full coverage. The country with lower take-home often shifts costs that the other country leaves to your private budget.
Net-of-everything, a relocation decision should weigh strong public welfare in Portugal against comprehensive welfare state in Germany, plus differences in pension capture, social safety nets, and city-level cost of living.