Need real tech support for 5g download problems

TMO rep called me up about a week ago.  Not sure what prompted that, likely routine sales call.  I explained the sad story shown above and he indicated that TMO engineering was working on my nearest cell site and that the work would be complete on Mar 8.

Last night (Mar 8) was a bit better, in that the usual dip to approximately zero Mbps was much shorter and recovered more quickly than many other times one can see in these data. 

But I think I see a clear pattern.  TMO Wireless Home Internet runs pretty well most days, and for the insomniacs out there, 2-4AM looks fantastic.  But come the traditional peak hours, say 7:30PM to midnight, download speeds just melt away. 

My regrettable conclusion is that the home internet is badly oversold in my location (central Florida) and that the network as it stands today just can't handle the load.  So in the interest of prioritizing voice and SMS and who-knows-what other customer groups, the 5g wireless internet is throttled down to zero. 

There is quite a lot of legalease and weasel-wording on the throughput commitments explained on the Open Internet pages, but nowhere did I see that 5g Home Internet customers would be completely shut off during peak times.  This is unacceptable.

For reference, here the last twenty or so days of download speeds, as reported by running speedtest.net: