Why not?
As to Why --> this one actually has a decent GUI and one that's not (visibly) based on a locally running webserver -- so it seems like it's got a shot at getting 100x popular with just a YouTube video (or gasp Tiktok). With the popularity of open-source today I find it a little hard to trust that something is "ensuring maximum privacy" as you say without having the open-source badge (yes, I know I shouldn't be so naive, but no, I am not going to look at network level logs to find out if the app is truly contained to local).