What exactly is the distiction? Comair started a regional airline. They partnered with Delta. Then Delta bought 20% of them in 1986 and the other 80% of them i

What exactly is the distiction? Comair started a regional airline. They partnered with Delta. Then Delta bought 20% of them in 1986 and the other 80% of them in 1999. If you want to call that a meaningful distiction then I don't know what to say. It's like claiming Instrgram is distinct from Meta because ??? I don't even know, they kept the name separate? WhatsApp is separate?