Following on from andrew_nyc — and this may be the naive question:

What did you change at the same time, and can you separate the two now?

rick_sfbay said:

Give anything pharmacological four weeks before you judge it, and give anything measured weekly a four-point rolling average before you call it a…

I do not accept the framing. The question has been narrowed to the version that has a tidy answer, and the part that was dropped is the part the OP actually asked about.

rick_sfbay said:

Give anything pharmacological four weeks before you judge it, and give anything measured weekly a four-point rolling average before you call it a…

True, with the qualification that this is a self-selected group. The people for whom it did not work post less, and that shapes everything we think we know.

OP back with an update, since a thread like this is useless without one.

Update — I went back to the injectable. Not because the tablet did not work, but because the fasting window and my mornings were never going to agree.

Clinical perspective, offered as context rather than as advice. The mechanism and the magnitude are separate questions. Agreeing that something happens says nothing about whether it happens enough to act on.