Lychee, a slicer software for 3D printing, immediately comes to mind. It’s a fucking electron app. It also only works if you login to a fucking account, even the free version, because fuck you. Oh, and free users have to sit through 30 seconds of advertising whenever they click “Slice”, because fuck you again

But also, MFW somebody turns a perfectly usable desktop application into an internal website that ends up only working on one browser…