I want to ask, what do retail traders who use order flow trading think? Where did you get that data from? How do you understand those densely packed words on such a small screen? I really can't understand.

If you are an institution, I have nothing to say. If you are an individual, a retail trader, I find it quite strange.
You want to trade, you don't need to learn anyone's skills, but you need inspiration. For example, you need inspiration for a pattern, you should look at what patterns others are using for trading.
For example, if you see a master using double bottoms to trade, I guess you can understand this pattern. This kind of pattern is used for reversals. When they break through, they buy in; if they don't break through or the breakout fails, they cut losses. You can keep doing this.
You don't need to look at others; just simplify and master this method thoroughly. Study for hundreds of hours to understand how the historical W is formed, where to set the best stop-loss in various situations, and where to take profits appropriately. Once you research this, when you see a W, you'll dare to enter; you'll dare to take positions; you'll dare to add to your position. Isn't that very simple?