Luca during French class is shared online as a short classroom reaction clip rather than a clip from a known film or show. Sounds like this spread because language lessons are a universal source of awkward, funny moments, and a brief confused delivery can stand in for anyone who has been called on unprepared. It is used in edits, soundboards and short videos as a quick punchline for school life, homework struggles and fake fluency, which keeps it circulating even without a famous source behind it.