My problem was fixed through sheer capitalism. Developer mode refuses to turn on via app if you haven’t completely gone through initial set up normally; meaning you need controllers for at least that section. After that, you’re free to turn on whatev...

Recently been getting this issue as well. MQDH refuses to connect to my Quest 2, so I can’t turn on dev mode from there; app is giving me the “we’re having problems loading this” error. Support has been unhelpful as well. Meta support redirects me to...