I answered this partially in my other comment on your "big youtuber" thread.
But i'd like to nominate my niche as being super hard to create just one video
To make one freediving video i have to first
1) research and scout a location i want to dive at, looking at dive maps, interesting things to look for, accessibility
2) prepare all my dive gear and keep up with my fitness and skills
3) find a day that i'm not working and also a day that my dive crew isnt working.
3a) make sure that free day also has the right weather/water conditions (sunny, low swell - cant be after days of rain)
4) drive to the location (i am lucky to live next to about 5 sites, but others may take 1-2 hrs drive to get to)
5) actually dive and get good footage (takes 3 hrs). If anything happens i.e. injury, undercurrent, illness, thats it for the dive
6) go home and edit, find music, research on what was seen. And film additional footage for discussion segments
It is impossible to do daily uploads.
I do weekly uploads but its only because i am on top of my schedule by about 4 weeks and i take two weeks off every ten uploads
But i absolutely love the sport i do and by making the videos a happy result of a great day of diving, it allows me to keep going and not feel drained.