I found that yuzu is more stable while Ryujinx is able to calculate uncached shaders a lot faster, which is great for playing Smash Ultimate, since I couldn’t get online shadercaches to work correctly. I overall prefer Ryujinx, but both are very solid.
I’m currently in the process of trying to 100% Cat Quest, since I already have all achievements on Cat Quest 2, before Part 3 comes out this august. Very much enjoyed the first two games, so I recommend as well :)