Hi, what is your Meta Quest version ? v69 ?
I did the test again this morning with 2 fresh install :
All was fine with the pairing code method, I had no freeze. When the pairing is a success, QGO will automatically close and when you re open it, ADB icon must be green.
Method 3 should work for everyone. It is supposed to work better than the pairing code method.
I retried it again this morning and all was fine too.
What I suggest you is to uninstall QGO, then restart your Meta Quest (it's important) then install QGO again and follow step by step and click by click the sidequest method.
Be sure to be in developer mode and to use do all of that on your Meta Quest Admin account.
Keep me informed.