Thanks. I had no idea there where that many parties in the parliament. At the last election I got the impression that it was just Le Pen's party, Macron's party, and a left-wing coalition. But I guess that was simplifying media coverage.
Technically all of the main three blocs were coalitions, the bigger picture matching your description.
The left-wing coalition was about 9~10 parties, Macron's coalition was around 6~7 right leaning/centrist parties, and Le Pen's block joined by one or two smaller far right/conservative parties.