Strangely enough, two people have asked me already about a desktop lightning wallet that is non-custodial, but is not a full node requiring bitcoind or something complicated (it can have full node like Breez, if the node is invisible to the user and doing something like Neutrino). Something like Phoenix or Breez, but for desktop.

Any ideas?

I checked: Breez, Phoenix, Zeus don't have desktop versions, Green does have desktop version, but it's based on prehistoric Green version that doesn't do lightning. 

 Alby Hub  

 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 

 Electrum comes to mind, but preferably something with two buttons Send and Receive, not a super complicated menu and channel management.