"Gonna be better" doesn't mean anything when they are not discernable qualities. Not even worth arguing about whether one is or not, it is throwing money away.

And yes a USB-C to 3.5 mm with a half-decent DAC in it, which you can get for $15, will sound just as good unless you are in a perfectly silent room with electrostatics or something. At which point you don't want or need something portable.