Is there a way to flatten AI or EPS imports from Freepik.com in Inkscape?

Question

I have a subscription in Freepik.com which let me download quality vector files in EPS format (sometimes also in AI format). Each file author in Freepik converts to AI/EPS in Adobe Illustrator with settings as they each please.

My problem comes when I try to open those files in Inkscape and the conversion yields to numerous groups inside groups inside groups… for a single graphic effect, for example, a clipping group which encapsulates a clipping group with a clipping group … for a rectangle with radial gradient and a thin lattice as overlay. I cannot attach an AI or EPS as example. I'm sorry.

I have tried both Poppler/Cairo or internal methods of conversion and the result is basically the same.

I have to say that I already ask Freepik people to force their authors to use the SVG compatibility flag in Illustrator, but that was like shouting to the wind…

So basically I want to know:

1. How to improve the EPS to SVG conversion in Inkscape (or maybe other open source (Linux) software?)
2. How to flatten or wisely ungroup an EPS from Freepik, if someone else had encountered a better solution to work with

(If you StackExchange gurus think I didn't properly phrased or described my question, please bear with me because I lack knowledge of many technical terms.)

Answer 1

Try Extension > Arrange > Deep Ungroup. Many of us have used this to simplify otherwise hopeless PDFs for edits when a PDF is the only available vector version of an image.

Ai files are often very similar to PDFs, so it's worth trying. It doesn't release redundant clipping paths, but they can be found as no fill, no stroke elements (select same) after releasing them.

Addendum

On GD.SE there are old questions where someone has wanted to extract complex glowing objects (sun, stars, planets, galaxies etc...) from a purchased or otherwise acquired EPS image. I've had such problems myself. An example: https://www.freepik.com/free-vector/light-effects-collection_1015001.htm

Disassembly is practically impossible even with Illustrator because the objects are constructed in a way that they look right only together and against a black background. For example, there are group level blending modes and opacity masks, so ungrouping destroys colors immediately.

Disassembly in Inkscape resulted in this:

Unfortunately this caused Inkscape 1.0 portable to freeze.

I cannot prove it, but the artist may have intentionally created the artwork so that it can't be disassembled easily. Maybe it's not at all a bad thing to encourage people to refine their drawing skills instead of copying and pasting.