Slot machines are really designed for the player to use strategies that can be called quite complex.  And playing them without any strategy at all is simply, in my opinion, not at all interesting even for the player himself.  Still, it is better to at least find out a little about possible strategies when playing slot machines before you start actively playing on them.  Still, the probability of losing less in the long term increases slightly, and accordingly the probability of winning also increases slightly.  But here there is a question of choosing a strategy and strictly following this strategy during the game itself.  It seems to me that a significant part of novice players still at some point stop using the strategy and the game begins to be chaotic, which naturally leads to large losses of money. 
This is a problem that a novice player still has to deal with on his own.  This will be useful for himself and for his self-esteem as a good gambler.