Yes,
@Damien.
In a perfect world you might find a menu of food choices that produced less glycaemic variability. In that same perfect world your pancreatic functions would be perfect (and variability never seen by you) because your own natural insulin resistance would not overwhelm your insulin production so much. So,
@Damien, it's a matter of balance. You can let yourself become obsessed by trying to find that perfection, or gracefully accept that you are getting a great result from an imperfect start point
To be fair to you, your earlier post did say just that:
CGM gives potentially terrific visibility minute by minute. As
@helli often says the data is fairly irrelevant if you can't do much with the information. For people like myself, totally insulin dependent, CGM is really helpful and I can tweak and tune my BG a fair amount by sensible carb estimating, insulin dosing and exercise or activity. Some of that tuning clearly shows in my daily graphs.
But for T2s with no meds or perhaps just metformin, there is a limit to how much they can alter their BG variability quickly. Long term, sustainable, changes such as sustained weight loss doesn't need CGM to make that work. Avoiding foods that cause spikes that overwhelm your metabolism can be identified by fps and then avoid those meals or reduce portion sizes.
Your strategy
@Damien to use CGM selectively is, in my non-medical opinion, very wise and easier on your pocket long term.