[Beretta_Vexee]

You are looking for 7-Zip Zstd: https://github.com/mcmilk/7-Zip-Zstd

I don't know what your use case is, but it seems to be quite a niche.

[zx2c4]

I was curious upon seeing this and found the thread where its inclusion was turned down: https://sourceforge.net/p/sevenzip/discussion/45797/thread/a...

[birksherty]

I use this one too. This is the best one out of all the alternative 7zip with zstd. UI is same, has all the options and faster than those for zstd in my comparisons.