For me livestreams are only good if you are a complete beginner on a subject. Actually, even if you are a beginner, I don't know if streams/youtube videos are a good starting point.
I like learning. I remodeled my house with my father, I rebuilt an engine, I completely modified a car, built home servers and computers, I'm planning a patio project. Youtube videos and streams often have a lot of bad information, additionally I don't want to watch a 1 hour stream just to learn halfway this person doesn't know what they are doing. There is sometimes a lot of fluff in those videos and marketing. Books and even online tutorials are much MUCH better, easier to briefly see what is in it.
A lot of people who are making these videos is basically a blind person leading another blind person. They don't know the subject well enough but want to make a how to video. For example, anyone can build a patio that looks nice......however, not everyone can build a patio that will stand the test of time. There are different guidelines for different climate/soil types.
Imo, if you are really want to learn something you need to dive deep, start with the basics so you can then at least filter good information.