Wow thats a lot of problems...tbh I kind of lost interest after waiting for them to go fully open source for about 4+ years now. I know they recently did for the android app but pretty sad that some parts are still closed after all this time. Holepunch itself seems like it has a lot of potential though.
Discussion
They are my speculations, tbh P2P solves so many problems it's worth trying. They never fully open source anything yet, they plan to next year
The early versions of keet on desktop had all the source available in the install location which they later obfuscated but is still available
The app and tech is extremely promising and looks near 100% will replace all current tech. You need to realise any problem centralised tech and data centres etc solve P2P can solve and actually solve better but it just needs different thinking