I know I shouldn't blaspheme, but I hate Samsung devices more than anything, especially at times when the browser reloads, and everything vanishes. I would never go back to Apple, I do not get along with IPhones, is that so hard to believe?! My previous Samsung device never had this problem, so I fail to see why this one does.
Switching to Chrome feels like a good first step then, Samsung's inbuilt browser is pretty notorious for aggressive RAM management that's causing tabs to refresh. It's also just a better browser overall and makes transitioning between different devices.
But, I thought Chrome came with a lot of viruses, or is that only on computers? I have heard much negativity about that browser, same as Firefox. I tried using Microsoft Edge on my android, but that was just as bad. However, I will give your comment consideration, and perhaps I shall find myself using Chrome instead.
Chrome is a well regarded browser and you have no reason to worry about security.