I recently started playing Saints Row 4. In the casual mode, its an easy game with an overpowered protagonist. It's really relaxing when a game gives every weapon in the beginning and let us choose the way to use them.

I agree, I think Saints Row has been a particularly good franchise at realizing that it can be a ridiculous power fantasy and lean into that and have fun with it. It even includes things other games would consider "cheat codes" as eventual unlocks, and that also adds to the fun and the mayhem. SR4 even does the best job of directly integrating that into the explicit appeal and story line in its "superhero powers" progression work.