So far memmy is the best app in my books, pretty close to what Apollo used to be but still missing some key features like the jump bar.
Voyager/wefwef is literally just an Apollo clone but it limits its search functionality to lemmy.worlds instance allow and block lists, cutting off less savoury parts of the fediverse, even if your account is hosted with a Switzerland (everyone allowed, nothing blocked).
I just don’t like the idea of not having access to ALL of the instances, even if I never choose to go there. But like I said, memmy is the only app that truly searches across all instances sfw or not.
Open source and free yes, better? I don’t know how you can say that considering everything plex allows via their plugins (recreate your own audible library) and also the more professional polish of their UI