Technical or Functional?

there are various on youtube mostly Technical (because i am searching for technical guides always)

try searching Udemy for video courses but please first check the preview so you can listen to instructor for what you can understand or not? 

happy learning!!

by the way, in practical world there are various problems you have to resolve yourself, these courses and books are just to give us a kick start.

interacting with people will gain your knowledge and try to be humble and if not have Answer but you think juniors here are going in wrong way, just guide them because nobody knows "everything" and nobody "experience" every problem.

I took a thorough look at the Odoo courses in Udemy. For a general course that explains the functionality of Odoo and the concepts behind it (in depth), I cannot find it. There are some courses maybe, but they are very outdated, like version 12 or something.