I always recommend Loreforge as a replacement for Scrivener. I had no problem swapping once I spent a little time in Loreforge. It's even available on Windows so they can try it ahead of time.

Huh? I've never paid anything for it.

Edit: Ohhh, I see. They've added a subscription for some extra stuff. The full features of the program are entirely available in the free version. I've never pushed up against a paywall as far as I can tell.