it's probably this one: 

https://www.leboncoin.fr/ad/nautisme/3071616272

"I have to part with my junk boat for reasons of age, health and distance. The junk boat measures 7.98 m but is very spacious, equivalent to a 10 m boat. It has a very thick polyester hull and an epoxy plywood deck. It is a TE 1.75 m to 0.45 m integral dinghy, which allows it to go anywhere and lie flat without crutches.

It comes with a Vetus 16 hp M206 engine, a very good engine with 250 hours, an electric Goiot windlass, a new VHF, a new Victron distributor, a Raymarine electric pilot, 100W solar panel, 50L water tank and chemical toilet, all in almost new condition.

This is a junk that must be seen to appreciate the space and quality of life on board.

Contact me on Le Bon Coin for more information. The boat is in dry storage at Folleux Nivillac at the Multi Nautiques shipyard."

Translated with DeepL.com (free version)

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it looks a bit like the jonque hai-long:

http://voilesdejonques.free.fr/bateaux/bateaux.php?page=a_vendre

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seems there's more to it:

https://vilaineenfete.fr/bateaux/hai-long/

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so it seem a thai junk.
i asked chatgpt about it:

"the main construction differences between chinese and thai junks reflect their distinct regional adaptations, operational environments, and cultural influences.

hull and structural design

chinese junks traditionally have a flat–bottomed, boxy hull made with softwoods (like camphor, pine, or fir) and a characteristic horseshoe–shaped stern with a high poop deck.
they feature watertight bulkheads dividing the hull into compartments, which greatly improve stability and safety by controlling flooding.
their hulls are often clinker–built with overlapping planks, lacking keels, suited for river and coastal navigation with shallow draughts.
the flat bottom combined with leeboards or daggerboards enables excellent manoeuvrability in shallow waters, while the bulkheads give rigidity and damage control. these aspects enable chinese junks to vary from small riverboats to large ocean–going cargo vessels.
over centuries, their rigging evolved to fully battened, semi-rigid junk sails with bamboo battens that provide flexible yet efficient sailing capabilities, especially for variable wind conditions.

thai junks, by contrast, tend to have a rounder, more streamlined hull better suited for the tropical coastal waters and seas of southeast asia.
their hull construction uses regional woods and may incorporate slightly different plank assembly methods to enhance seaworthiness in rougher waters.
while they share the basic junk design principles, thai boats often have hull forms optimised for better hydrodynamics and seakeeping, including firmer bows and more tapered hull shapes than many chinese flat-bottomed junks.
they maintain some of the traditional compartmentalisation but adapt to regional fishing, transport, and tourism needs.
their superstructure and deck layouts may be more open, with practical features for local conditions.

rigging and sails

both chinese and thai junks use the iconic fully battened junk sails with bamboo battens, designed to be easily reefed and managed by a small crew.
however, chinese junks typically have multiple masts placed with no stays, using a rig system that originated over centuries to maximise efficiency in riverine and coastal conditions.
the bamboo battens in chinese junks are loosely tied to the sails, allowing the sails to curve naturally with the wind, improving performance.

thai junks use similar sail configurations but often exhibit regional variations in sail shape, size, and material reflecting local wind patterns and cultural influences.
thai junks commonly incorporate decorative and spiritual elements, such as painted eyes on the bow or specific coloured ribbons, which are believed to protect the vessel and crew.

summary

in essence, chinese junks feature a more traditional, flat–bottomed, compartmentalised hull built for riverine and ocean use with highly developed watertight bulkhead technology and multiple rigid masts with semi–rigid battened sails. thai junks adapt this general junk design to a rounder, more hydrodynamic hull form suited for tropical coastal waters, with regional rig and decorative variations that suit local maritime culture and conditions.
both share a foundational construction concept but diverge in hull shape, stability methods, rig tuning, and cultural embellishments, reflecting centuries of adaptation to differing maritime environments.

this makes chinese junks versatile across many water types and cargo uses, while thai junks are optimised for tropical coastal navigation and local needs with a slightly different hull and rig profile."

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couldn't find out more about it, unfortunately.