I think that a lot of the higher end lights are designed more to follow commercial layouts. Where there is row after row of plants with aisle between rows. Therefore, rectangular layouts suited them better. If you look at where the majority or grow lights end up, it’s not in square tents.thats just our application, but even then not always.
If you’re shooting for a scrog in a square tent, a square layout on cobs would give you more even coverage. But would probably be ok with the right rectangular fixture as well.
As max said, would be a tad low on the typical wattage per foot measurements, but you’d be way better off with this than any of the fixtures you mentioned in original post. Those watt per foot ranges are kind of old, and you can hit 600 ųmols or better average with less than that wattage. I find that to be a much better target than watts. But that’s just me personally.
I’ve never heard anything bad about timber, their products, or their customer service. So take that for what it is. The hlg options are solid also.