Unfortunately you (and of course the wikipedia page) misunderstood the OECD document [1], which says:
"In France, income tax and employer social security contributions combine to account for 82% of the total tax
wedge, compared with 77% of the total OECD average tax wedge."
Note how it says "of the total tax wedge" not "of their salary.
The tax wedge itself is 47.2% in 2024 in France. This is indeed high by international standards but nowhere as high as you claimed.
"In France, income tax and employer social security contributions combine to account for 82% of the total tax wedge, compared with 77% of the total OECD average tax wedge."
Note how it says "of the total tax wedge" not "of their salary.
The tax wedge itself is 47.2% in 2024 in France. This is indeed high by international standards but nowhere as high as you claimed.
[1] https://www.oecd.org/content/dam/oecd/en/publications/report...