A new thing was launched at the halvening .. called runes.. so maybe there is some high fee connection to that.  Agreed that the fees are pretty outrageous and seeming to persist over several blocks... so some other guys probably have better explanations for what might happen.. and by the way, I had heard predictions that the first block after the halving might have more than 10 BTC, and it ended up having nearly 40 BTC, so even the earlier high predictions likely ended up under-predicting how much fees would be going into some of these seemingly fad like ways of making money.