For every ‘you can do anything’ toolbox, a custom built solution is always going to feel more personal. And that’s been a real part of the problem with the glut of games made with existing engines, particularly Unity. It’s sort of the RPG Maker effect, once everybody can make a thing, nobody really cares about most creations anymore.
No matter how easy game dev is, you still have to put the personal effort in if you want it to stand out. Not necessarily ‘good’, but enough that people don’t go “oh this is an [XYZ] game and it really looks/feels like one, ugh.”