Really interesting. Thanks for sharing your experience!
In Australia we only have access to the Libre 1. Which is both frustrating as I’d like my girlfriend to have the ease of the Libre 2/3 (bluetooth etc) but it’s tolerable given the more open nature of the first iteration where we double the function life - essentially halving the high cost.
I’m looking at grabbing a Bubble glucose monitor (https://www.bubblan.org/) that adds bluetooth functionality to the Libre 1 amongst other monitoring etc.
Have you looked into OpenAPS / AndroidAPS to move away from the Dexcom? Still learning so this may be an overly simplistic question.