Somebody has created a puzzle by exporting a 3D model as 2D vector which contains thousands of separate relatively simple shapes like triangles. Inkscape and illustrator struggle with it, but open it with GIMP. You can set the generated bitmap image to be say 6000 px for good resolution (there's WIDE empty areas at the edges).
Reject GIMP's offer to include also all paths. With them the image would be as complex as the SVG.
Crop the empty edges off. Then export the image as JPG if you can allow white background or as PNG if you need transparent background. The generated PNG had so much redundant parts that the image size was only about 216 kilobytes. Here's a zoomed snippet to show how sharp it is:
This is the uncropped image imported to GIMP; as you see more than 50% of the width is transparent emptiness.
The job needs practically zero graphic software skills and it really worked fast with free software. The drawback is that PNG is bitmap. But that's nothing if you have enough resolution and you are not going to make edits.
NOTE: The file size is 216 kilobytes, but the actual memory need when loaded into programs is tens of megabytes. If you have several images like this open at the same time for making a compilation your program can become sluggish. Programs which are intended for making layouts like InDesign can use linked images. They stay responsive by showing only a low res version during the composing work.
If you do not prepare printings, but files for onscreen watching only the pixel dimensions of the images can be reduced 70%. That reduces the memory need 90%.
Not asked: The construction principle "planar faces" can be faded in GIMP to some degree without making the image blurry by applying tresholded blur. It fades only borders which have less contrast than the given treshold:
This increases the PNG file size easily +100% because the redundancy inside the image decreases.