Might, but as a non-diabetic your body self-regulate, so you'd usually see a large increase in blood sugars followed by a large drop as insulin blood levels increase and trigger its handling.

And because the sensor needle goes through the skin it must be replaced pretty regularly, and if it's not covered by insurance it's not exactly free (the link from the sibling indicates £57, that's per fortnight).

My diabetic colleague was super happy when they got one though, the "beep" of their checking their BAC is pretty funny and it's definitely more comfortable and sanitary than having to prick their finger every time, plus the full history view is useful as point check means there are dark holes between checks and you might not see some of the opportunities for improvements.