Yes, but only for debugging or educational purposes.
I recently needed to inspect the source code of an old Chrome extension that I had saved as a .crx file. Since Chrome no longer allows sideloading unpacked extensions easily, converting it to a .zip was the perfect workaround. crx to zip
Overall Rating: ⭐⭐⭐⭐ (4/5)
Here is my take on the process/tool I used. Yes, but only for debugging or educational purposes