M2K vs MES for day trading?

Been trading MES and SPY 0DTES prior to that, couple of years in total. I'm curious about using the M2K lately since volatility is so high it's hard to get enough contracts on-board with proper stop placement to allow myself to scale out more gradually, even using the micros on S&P.

The long-term daily charts look quite different, obviously it seems like the Russell doesn't spend as much time running up, though I'm guessing a lot of that is a lack of strong overnight moves. Are there any major intraday differences worth knowing about?