I can count 9 BOF's here including the titles: Unconscious Bias Workshop , Impostor Syndrome Workshop.

Rest 50 - 9 = 41 are talks, but I am not sure about the lightning talks, here are two entries of them, where one of that were Intern Lightning talks and other was normal lightning talks.

Sno.	Type	Title
1	Lightning Talk	Linux in Edinburgh
2	Lightning Talk	Companion app development
3	Lightning Talk	GThree: 3D rendering in GTK
4	Lightning Talk	Flatpak external data checker
5	Lightning Talk	Graphene: maths is hard, CPUs are harder
6	Lightning Talk	How to survive a speaker having a heart attack on stage
7	Lightning Talk	Funny face detection effects in Cheese

@kristiprogri please take a look.!