Hello,
Loading Jusiv's file works fine on my end, if you have something very abnormal looking maybe post a gif.
If you want to avoid the face blocking the view, you can simply set the face properties to "render first".
Otherwise, I think it's a lot of fiddling around to make things 'look right', there are no absolute rules, especially regarding to clipping.
If you 'invert' a mesh by dragging one sides vertices to the other, it will be rendered inside-out, as if you are looking into an open box. That's how most people do skyboxes. There's a lot of useful info in this guide: https://www.notion.so/FAQ-Tricks-and-Workarounds-175da9c4b7ca4a92848fe26f798af5d... Inverting is at the top of the linked page.
