The goal was to compare MCOL cities. Maybe Leipzig wasn't the right one for that, but Munich is one of the most expensive cities in Germany.
Munich vs SF, Seattle or NY might be a fairer comparison.
Switzerland generally has higher pay than Munich.
Also how hard is it to get a $168k dev job in Portland vs $84k in Munich? I think $84k in Munich is significantly easier.
I forgot about Switzerland. Arguably it's not EU, but it's still a place that EU citizens can easily go to.
Given that both Portland and Munich have 1000+ entries on levels.fyi and the given numbers are the calculated median, I'd say it's a fair assumption that getting the median comp in both locales would be equally hard.