Not gonna call you a dumbass when you’re open about this being anecdotal only, but yes, all of the ‘assert dominance’ stuff has been pretty thoroughly debunked. At best you’ll get a dog who fears you just the ‘right’ amount to behave how you want them to when you are there, but they don’t have any actual skills and the behaviour does not transfer well to other people and situations. And if their new anxiety does overcome their fear, the resulting behaviours will be much worse than what you started with.