I think that more experienced players should have a strategy, how they choose bets and how they follow a set of rules and do not exceed the risks. For people who play only for fun, it is clear that they will not care about strategies, because it takes a lot of time and implies the possibility of making gambling a way of earning money, which is actually very difficult. Maybe there are successful players who do not have a strategy, it is difficult for me to judge because I have not seen any statistics on this matter.
The only strategy that's very important for both those who gamble for fun and those who are gambling to make a profit in it should be risk management in the aspect of determining and controlling how much they should spend in gambling and knowing when to call it a day.
Those who gamble for fun, even if they are not in it for profit, might be carried away by the entertainment they are getting from the game and end up spending more than they have ever budgeted for; those who go in for profit should stick with what works for them.