Hi @kjocoka1 and @doughpatterson. A fix for the bug that caused the index download to hang was made in Arduino IDE 2.3.4:
Please try Arduino IDE 2.3.4 and then let us know if you still experience the problem.
That sounds like something separate from the subject of this topic, so definitely create a new forum topic as @sterretje requested if you still experience it with Arduino IDE 2.3.4.