5G Home internet keeps dropping!

I have the same story. Worked great for the first several months. Last 5 weeks it has sucked. Dropping calls, streaming, just cuts out for 1-2 minutes every hour.  Works great late at night or early morning, so it is probably over-crowded cell towers.  Customer service checked everything out, didn't find anything wrong, so they just said there is nothing they can do.  I am shopping for new internet service.