Most of the time, 60. But it depends.

Competitive FPS/action games I want 120, story games with FPS 60, anything turn based or slow paced is probably fine at 30 or 40. It also depends on a lot of other factors. On my handheld (steam deck like) I aim for 30 or 40, but my main PC always shoots for 60 or higher.

That and I usually tune my settings so I get a bit more than 60, then lock the framerate to reduce stutter.