If you have a desktop or laptop, you can try and use both the website and also use the desktop app and see how different they are and how better it is on the desktop app. I have used the three before and I prefer just the mobile and desktop app than the web.
Although, I can say that preference also matters.
Yup, have already tried it several times since it is much easier to do technical analysis on a desktop. I only use the web version on desktop whenever I am at home and using tradingview and checking charts. But if not or if not much analyzing is needed, I only use my mobile phone. Now having been able to try the app for myself, it's good but not something that I totally need at the moment. Like you said, it may be a matter of preference and the type of utilities that a user is looking for. Like if someone just wants to do simple and fast trading, the web browser would suffice but if someone wants to utilize more of Binance's features then I guess the app would be a better choice.