Yeah personally I much prefer Freetube’s UI over Grayjay (on desktop at least). For example, the subscription feed has an annoyingly huge list of subscribed channels that takes up like 25% of the screen real-estate, and you can’t hide it. It’s also pointless because there’s another list of your subscriptions on the left side of the screen. It also can’t be launched automatically when opening a YT link with the LibRedirect firefox extension, whereas Freetube can.

But besides design issues like that, Grayjay is much more reliable than Freetube when it comes to bypassing Youtube’s bot protections.