A 0 ohm resistor typically is only used for places where a different-valued resistor could be substituted or used to exist, or to act as an optional jumper on different revisions of hardware. In those cases, the resistor is in the schematics.
A circuit designed from the start with a 0 ohm resistor that was just used for connecting two points across some board feature would never make it past review where I used to work. Such a situation may come up due to later design changes or board damage, in which case the board is modified by use of a "blue wire", which is an actual blue-insulated wire that makes a point-to-point connection on the surface of the board. Those are not in the schematic.
That said, I used to work on military electronics. Perhaps the consumer electronics world is different.
A circuit designed from the start with a 0 ohm resistor that was just used for connecting two points across some board feature would never make it past review where I used to work. Such a situation may come up due to later design changes or board damage, in which case the board is modified by use of a "blue wire", which is an actual blue-insulated wire that makes a point-to-point connection on the surface of the board. Those are not in the schematic.
That said, I used to work on military electronics. Perhaps the consumer electronics world is different.