The ones that survive are the ones that you forget are forks
LibreOffice (from OpenOffice)
Jenkins (from Hudson)
VeraCrypt (from TrueCrypt)
ValKey (from Redis)
MariaDB (from MySQL)
LibreWolf, Waterfox et al. (from Firefox)
Angie (from nginx)
CoMaps (from Organic Maps)
The list goes on and on. Just about every Linux distribution is derived from one of the three or four earliest ones.