So after 5 hours in Yuzu and 2 in Vulkan Ryujinx here are my findings:
Note: 3080 desktop i7 9700k
Yuzu OpenGL: 30fps stable with shader building stutters and some 2-5 second freezes in cutscenes. Zero crashes. Perhaps some missing effects. Scaling above 1x has black lines.
Ryujinx Vulkan: 22-30 fps all the time. No large stutters or freezes. Mods have a large impact on performance; no mods with 4x emu scaling ran stable 30 fps, Res mods with 1x scaling ran 22-30 fps. Only crashed at the very beginning of the game.
Conclusion: Vulkan on Yuzu will probably solve all the issues if that ever works for XBC3. Ryujinx 4x no mods runs the best, and only looks kinda bad. Yuzu OpenGL looks and runs the best ONLY when shaders are built. Ryu 1x w/ mods looks great but has 22-30 variable fps, feels the most Switch like with fps slowdown but not stutters. Pick your poison, none are perfect.