So they went from a subpar native application to an even more subpar application on Electron. I think I'll stick with SourceTree. At least that won't take 10 seconds to boot up.
I've never used Github Desktop but SourceTree has its own set of glaring problems from interface to functionality. I stick with the command line these days.
SourceTree just became worse and worse with every release, to the point of unbearable. I am using an old version of SourceTree (1.5.2) and it works great.
I hate to be the bearer of bad news but that version of SourceTree is affected by this security vulnerability: