Calibre is great for managing an ebook library, and okay for reading ebooks but the reader is clearly not its primary focus, so I’m wondering what readers folks here use across platforms.
I know of a few, but I’m always on the lookout for different options that may have features I didn’t realize I’d love to use.
I use Koreader. It’s a bit heavy because it has basically any option you can think of, it works on a wide multitude of platforms, and can have weird bugs sometimes but hardly ever. But the way I read, I need some settings that aren’t in very many readers and it has them. Try it out.
I’ve also had good luck using syncthing to sync my library (and progress) across devices with koreader.