Easy. I work hard, I like to take it easy when I game.
That is to say, in games that offer you these choices, Warrior is Easy, Rogue is Normal, and Mage is Hard. Mages have powerful spells, but they're limited by mana costs. They're also more fragile, and they're often pitted against people who can attack with no such cost and take more damage. Mages, thus, are at a disadvantage.
Rogues are limited by ammo if they use bows. They don't typically use swords, but can use daggers. They're quick, but not as strong as warriors.
Warriors can take a lot of damage and do a lot of damage.
Make it D&D and it's a different story. I typically roll a mage and subclass into thief or assassin, because those characters tend to think like I do. Strategy, planning.
With Skyrim, it's sneak thief every time because the game is geared for that.
Games are very seldom fair for all the choices you can make. I think D&D tries more than most. Most games are straight up unfair to mages. That's one thing I like about Hogwarts Legacy. You have to play a mage (a witch or a wizard). Despite the fact that the books were written by a bigot, you can be trans, and there's a trans character in the game. For some people, it's not enough. Fortunately, they don't have to play the game, and it goes on sale for ten bucks all the time. It was also free on Epic once. So you really don't have to pay that much for it, and once you get a broom, you got your money's worth because flying is awesome. Anyway, the game is geared towards magic use, and it makes magic fun. And it's never really hard, either. So you can play it casually.
With Cyberpunk 2077 I also went with the mage build. It's not immediately apparent which is which in Night City. Your first choice is Streetkid, Nomad, or Corpo. These are back stories. They don't matter, except Nomad gets you a cooler bike and Corpo gets you a cool line. No, the class choice comes down to your cyberdeck. If it's got the hacking modules, I forget what they're called right now, you're a mage. If you have a Sandevistan (slow time), you're a rogue. The berserker one is warrior. The latter two just make the game harder. This is another game geared toward mages, except mages here are called Netrunners. A Netrunner can hack several things at once, cause enemy guns to misfire, blind enemies, and even spread a plague amongst them. And that's low level stuff (that can level). The high level stuff is straight up nasty. I mean, if you're not a Netrunner in Night City, you're challenging yourself for some reason. Or you wanna be David Martinez from the Netflix anime about the game. But you'll never be as good as him because his Sandevistan was special. You don't get that one. And the berserker decks are just dumb. They're there to check a box.