They're only paying 80,000€ for a full stack dev and want the candidate to have a "portfolio of successful projects"
$86k in Europe is good (about 90th percentile of earners in Germany), but not as fantastical as some salaries in the US. Plus, Paris is probably expensive.
The €80k is the start of the Mistral salary range. €100k is the top, which would put you in the top 1% of earners in France.