Network “upgrade” followed by daily outages for three weeks now

I live in the Atlanta metro area and received a text saying that Xfinity was “upgrading” their network in my area on March 26th (2026) and that it might affect internet and TV services for a day.  This “upgrade” has turned into a three week (and counting) nightmare for customers who experience near-constant outages in services.  There is never an explanation for what is causing the problem or what is being done to fix it.  Calling support just sends you down the rabbit hole of “unplug your router”, “unplug your cable box,” “tighten your cables,” “change your HDMI cord” and, finally, “we need to send a technician to your house, for which you will be charged.”  Explaining to the customer service rep in a foreign country that the problem is not in my house but in the network falls on deaf ears.  Several of my neighbors have switched to the newly-available ATT Fiber out of sheer frustration.  I have been a customer of Comcast/Xfinity for over 30 years and have never experienced the disaster that is currently ongoing.  Can’t someone from Xfinity simply provide an explanation for why this is happening and when it will be fixed?  Customers are owed that much.