I would concur with most of these criticisms of Libre 2 as my experience has been similar. What I would say in its favour however is that in general (very general), I would say Libre 2 is more accurate than Libre 1.
But.
I also had 2 supposed hypos the other night, with alarm, (according to Libre 2), which is an unusual event these days, and especially since my dinner had not been particularly different that night, nor had there been any other variables that I was aware of.
I suspect pressure on my arm might be the reason for these hypo alarms and showings on the graph, but I am not yet feeling comfortable to move the sensor, and Libre 1, as far as I know, did not respond to the pressure on my arm, by indicating I had had a hypo (but I might be wrong about that conclusion).
I have also found that the graph at another point in time was showing higher than the readings (so that seems like it might be contradictory)?
I keep getting the alarm going off in the daytime too, to tell me there is no signal - which is a nuisance, and showing the symbol that there is no connection.
What I find a bit surprising is why Abbott themselves have issued this thing, clearly without proper or effective, meaningful trials....?
Otherwise how could there be so many problems with it?