I just heard about this study on a podcast on the difference between a 4-hour and a 6-hour feeding window. The extra 2 hours allowed the body to burn 2X more. That’s a pretty big difference for extra 2 hours of fasting. I believe you are in that zone.
In case you want to geek out on it.
https://open.spotify.com/episode/2Nwg60j5XQ44Ct2oWjJ1Tn?si=d57251f5fa0a4c83