It’s open source. A privacy policy implies that the author is willing to make themselves liable to broken promises. Most OSS authors work for free and do not want to put their ass on the line like that.

The license says “you figure it out”:

> THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.

“Without warranty of any kind” also excludes any warranty wrt your privacy.