Hello! I don't know if this is the appropriate sub or not, but here we go:

Our new house is being built 3000 miles away. I doubt I'll be able to make it for the pre-drywall inspection. I also don't know the local code. But we have received a video of a walkthrough as we wait for the windows to be delivered.

While watching the video, there are three "columns/posts" which seem to be made by strapping together multiple 2x4s. I don't think I've ever seen something like this done before at this quantity.

First Picture: https://imgur.com/lN4mWXX
Second Picture: https://imgur.com/0hALaLd
Third Picture: https://imgur.com/XWi5V9d

It is a little hard for me to see what's going on because of the streamed quality, plus the shifting light.

For the one on the left, I can get wanting to have something put in there to support the bathtub in the owner's suite above.

For the middle one, I get that it's aligning with the header above.

For the right one, I get there needs to be a jack stud and king stud for where the sliding door will be at, but this looks like it's around six 2x4s all strapped together. Why?

Another thing that I'm not really sure of would be the purpose of having those straps diagonally. It seems like you'd do this when anticipating compression, but I don't see how the straps would help with compression. Additionally, when tying together lumber, aren't you suppose to fasten together through the plank with a bolt or something similar with a instead of tying it around the outside?

Is this actually "okay" and I'm just making a mountain out of a molehill?