I'm just looking for some reassurance that many people just use the basic functionality of buy and sell without utilising all that complex stuff.
You got it. I barely use Binance web to buy or sell. The last time I logged in via web was 3 or 4 months ago. Most of my orders are carried out via Binance app, even before that, I had to take a look on so TAs, using
https://www.tradingview.com/. I know Tradingview is also integrated in Binance web but I just use Tradingview on its own web like a habit.