Well, it depends on how much you can win in terms of the odds to win. In a slot machine, of course, you do not get to win right away. Unlike in a sports bet, where you will only win or lose a specific match, that's just one time. It is pretty controllable in terms of chances because you could do research to improve your position and hopefully win, but in slot machines, you go with it, and it doesn't matter how big or how small your bet is, but you cannot increase your chances of winning.
You can try gradually increasing your bet on slots if you've had a long losing streak, but this is a specific strategy for slots, and players generally play with a flat bet, which is usually less than a dollar. When betting, your bet will be in dollars or tens of dollars, depending on the number of bets, which will definitely be fewer than in slots. I'm willing to bet more on bets because I believe I can choose a good bet, whereas in slots, I understand that I have no control over anything, here luck will decide everything.