It needs an Alby account just to see what kind of downloads there are. Something that is preferably a software, not a service relying on a third party?

Or is there a way to run Alby Hub without Alby account? 

 This site has direct download links for AlbyHub on the desktop. I don't think you need an Ably account anymore to run it but I haven't tried it.  

https://guides.getalby.com/user-guide/alby-account-and-browser-extension/alby-hub/alby-hub-flavors/desktop#windows 

 nice, thank you