I was already using Veadotube Mini for my second avatar. After the mic issues on PNGTuberPlus, I just moved my main avatar to that too.
It's actually well set up for multi instancing so it wasn't a big deal. The only catch is that while it supports more whole avatar movements, it doesn't do in app animation. If you want your avatar to be animated, you have to create a gif or apng.
I still want to use PNGTuberPlus since it makes its own animation, but at this point, learning to animate myself feels like a better use of my time than continuing to troubleshoot.