The only way we can know what works best for ourselves is by trying everything that doesn’t work as well. Looks like you have done a pretty thorough job of testing options.
Those glucose numbers aren’t great but they don’t look scary at least compared to diabetics. I’d be most interested in the trend. If you stick with your current diet for 2 or 3 months and your glucose numbers fall towards your previous levels then it would seem you have a diet that is compatible with long term good health. If your glucose numbers go higher I’d be inclined to resume exploring some form of low carb or keto.
On another thread closed by an admin, jellybelly who seems mostly interested in finding fault with keto suggested someone was not good at “winning people over to the keto way of eating” as if this forum should be a contest between those keto or not “winning” each other to a style of eating. I’m here to learn how keto and the endless variations work and helping others fine tune their own testing of the diet so they aren’t scared off by easily avoided pitfalls or the misinformation of conventional nutritional wisdom.
You have contributed to the useful discussion of keto and I think you still can even if you are currently choosing to mainly eat high carb. And if you plan to sometimes use keto to facilitate fasting hopefully you will find value in continuing the discussion here.