Root flare help

I am excavating grass that was all the way to the trunk of this otherwise healthy maple. I see a flare of the trunk and already removed one circling root (about 1in thick with cut seen pics 1-2 with indented but intact bark underneath; it broke closer to the trunk than I would have liked but I cut a cleaner chunk out between it and the larger source root). Pics 3-4 and the taper show why I believe I'm deep enough. Open to any feedback but my primary question is the large seemingly embedded root in pics 5-8. It looks to have dug into the flare? Picture 8 seems to show to origin of the large root wrapping around the left but true exit point is under other roots. Picture 5 shows it forking and moving away from the tree. It doesn't look to be circling anymore as it turns away from the tree so I assume messing with it would do more harm than good at this point? Do I need to debulk any of the smaller roots over lying?