Welcome to TFP. Nice to meet you
I'd much prefer toxophilite's plumbing, but yours is probably more the norm.
It's not crazy unusual and mostly suggests the pool has some water features, or in-floor jets, or some such, and also suggests they've used individual lines for everything from equipment pad to pool, which is a good thing. It's also quite apparent they used primer (the purple stuff) - also good. (just trying to find the positives
)
There is one 1" pipe holding another 1" pipe higher than need be. The lower one should be lengthened so the top 1" pipe lays a bit lower, but it will work just fine as is - just looks lazy to me.
With it getting concreted over, I'd be thinking about settlement over time. If it were mine, I'd backfill with fairly fine material, pushing it around with the shovel blade to ensure it's somewhat packed in around the pipes, doesn't leave voids, and rocks are not holding the backfill up. I'd use that material until the pipes are well covered (around 3" above the pipes), then run a compactor over it, then finish the backfill and compact that as well. Even with all that, I would not concrete over it right away, but rather allow it time to settle, ideally. If that's not possible, be sure the concrete is thick enough, and with sufficient rebar, to bridge the gap when the ground settles under it. A temporary gravel path over it all would be safest because it can easily take a year for ground to fully settle.
The purple spots are primer drips and smears and won't affect anything. It does need to be pressure tested before backfill and/or before concreting. Has pressure testing been done to your satisfaction?
