Personally I would say they are easier, but it also depends on a lot of factors....
For instance, if your not being selective of the tables you play at. End up sitting down with a table full of sharks that understand the game better then you. You might as well just set your money of fire. But if you can consistently get into the soft games you will make easy money. Assuming you can be patient enough to get max value on
hands that they are willing to pay you off on....
That brings up another point. Cash games need a lot more patients then MTTs or SnG.... cause you tend to play a lot tighter, face and offer a much larger bet sizing, and will almost always showdown hands that are verifiably worth an entire stack in most cases.... in tournaments it's all about monoverablity, and out exploiting your opponat's. Whole Cash is very GTO based.... since GTO is pretty cut and dry for the most part, and you can understand it, and truely play it like it was ment to be played without being resualts oriented. GTO can become very tedious and boring, thus you start to spew off chips because you get board.... unlike exsploitive play where your monovering your actions, and consistently adjusting to diffrent player types to get the advatage which make the game much more harder. But a lot less boring, cause of the consistent action.