Winamax is France's own home-grown poker brand, ANJ-licensed since the French market opened up in 2010, and currently the #2 room in France by market share (behind PokerStars.fr) with roughly 30% of the regulated French market.
Unlike PokerStars.fr, Winamax runs 100% ring-fenced French liquidity — no shared pool with Spain or Portugal. The player pool is smaller in absolute terms, but has a reputation for being more recreational, since it's purely domestic French traffic rather than a wider international mix. Ring-fenced means restricted by physical location, not nationality — players of other nationalities based in or visiting France can still play.
Cash game tables run 4-max rather than the usual 6-max, which pushes win rates up noticeably: a recreational player at the table gets shared with only two other regulars instead of five.
As of this writing it's still the go-to "local" option for French players — competitively priced and consistently promoted, which keeps the recreational base coming back.