No problem, you can never know everything about it, too many techniques and details plus the fact that sometimes things that you thought you knew may not be like that anymore, like checking the pistils to harvest, now the trichomes are checked.
Not only there are different techniques but also different ways to do things, you can ask the same question to two people and get two different ways to do something, for instance for cloning some people will add H2O2 and some won't, some will use a dome and other will not use any rooting gel/powder and so on.
I hope I was able to explain myself
I have learned a lot of things around here but there are still many more things that I don't know YET