I dont see that any traces are broken.

It has a shot at being fine. There's a wire inductor (that wiggly trace there) that might be in danger, but I'd just test it, and if it works, apply slow setting epoxy and some clamps to stabilize and seal the crack.

There's a good chance that this area is free of any traces. However, to increase your confidence, you could use a Dremel to grind down the broken area to try and uncover the internal layers of the PCB. Afterward, you'll need to reinforce and stabilize this part of the PCB anyway, ideally with some kind of epoxy.

A wiggly trace that doesn't seem to go anywhere?

Here's a side angle of the crack:

Hi,

I'm supporting what seems to be the majority opinion there, the crack looks ugly, but it is in an area that seems to don't really have traces on the surface, as it is on the border of the PCB and no components seem to be here it is also possible that there are no traces in the hidden layers either.
The board might have a full flood filled ground and/or voltage plane in the hidden layers here, but a breakage there wouldn't cause issues with these either, only if they somehow got shorted, and that is easy to check as that will cause an immediate short of the PSU which if built with any quality in mind would stop immediately at detecting a short between any of the power planes or the ground.

I'd guess this is fixable as long as you won't cut corners.