Yes, France was involved in the Brexit negotiations. France is a member of the European Union, and as such, it had a vested interest in the outcome of the negotiations. France was particularly concerned about the impact of Brexit on the French economy and on the border between France and the United Kingdom.

France was one of the countries that pushed for a hard Brexit, meaning that the United Kingdom would leave the European Union completely. France was concerned that a soft Brexit, meaning that the United Kingdom would remain in the EU's single market and customs union, would give the United Kingdom an unfair advantage over other EU countries.

France also played a role in negotiating the terms of the withdrawal agreement between the United Kingdom and the European Union. France was particularly concerned about the issue of the Irish border. The Irish border is a sensitive issue because it is the only land border between the European Union and the United Kingdom. France was concerned that a hard border between Ireland and Northern Ireland would reignite the Troubles, a period of violence in Northern Ireland that lasted from the late 1960s to the late 1990s.

In the end, France was not entirely satisfied with the outcome of the Brexit negotiations. However, France did manage to secure some concessions from the United Kingdom, such as a guarantee that there would be no hard border between Ireland and Northern Ireland.

The Brexit negotiations were a complex and challenging process. France played a significant role in the negotiations, and its concerns were taken into account by the European Union and the United Kingdom.