Just got the first Android 10 beta update for my S9, and it had the VOLTE toggle on it. Hurray

Sprint has pretty much neglected our area. T-Mobile improved by leaps and bounds in this area when they acquired MetroPCS. Metro duplicated the Verizon network throughout Florida and had developed quite a following. Sprint's network actually went backwards in that they replaced some macro sites beach side with small cells + band 26. Not smart because small cells just don't have the coverage. Forced me to get an MB.

True. But that could affect their merger prospects. 

If Sprint increased backhaul the network would greatly improve.

Same here, this merger has taken way too long to either complete or reject.