Boycott 7-Zip: “Limited” Open Source and Security Issues

But is there an actual alternative?

PeaZip directly uses 7-Zip under the hood.

NanaZip is a fork of 7-Zip. While it's certainly a very good effort, it's focused on modernization and AFAIK doesn't fix many of the issues brought up in the article.

WinRAR is the "obvious" competitor, but it's completely non-free and also Russian-made (though the company itself is German).

Better not to use russian software

I see this from time to time but I am curious how people people know how many of the packages in Windows, Mac and Linux were written by or contributed heavily to by Russian developers. Surely people did not stop using nginx?

7-zip is on the not permitted list at my work. mostly due to the russian author but also due to the issues in the story.