there is dataflow with some level of control flow (boolean conditions, boolean loops, and event-driven conditions) in https://ossia.io - it's tailored to artistic uses however :-)

the details are in there : https://tel.archives-ouvertes.fr/tel-01947309/document

That looks interesting! I've been using pure data on and off for a while. It seems to be the most complete one so far.

yes, puredata is excellent and a huge inspiration :-) (its author, Miller Puckette, was in my phd jury !)

Holy moly! Curses in hex out of envy :)