I found this to be a rabbit hole. e.g. Ideally you want 24V not the 12V most of the cheap stuff is. And then you really want one that has warm white LED instead of just RGB'ing the white.
...and pretty soon you're looking at real money
...and pretty soon you're looking at real money
For example, if you use RGBWW strips (i.e., four channels; RGB plus warm-white, as you rightly recommend), you could have one -12V lead shared with a thickness of 4mm², and four separate 12V leads at 1.5mm². At around 4.2m distance (at the farthest) I measured an acceptable voltage drop of 3.9% for 405 SMD5050 RGBWW LEDs.
But yeah, you do need to consider the wire gauge of your cabling, depending on the number of LEDs driven.
The same holds true for the power supply in NA vs most of the world (save Japan). 110V vs 230V - much less copper needed for conductors. motor windings, etc.
Flip note: the better option is using constant current drivers, for higher efficiency (they might have unsafe voltages, though)