I am a developer and i work from home. In my experiment i ruled out “any kind of movement” :-D (no, i am not a bag of fat, only a lotto e “not in perfect shape”). But. I can confirm that lot of stress and lot of coffe have a big and misurable effect.

I definitely see effects on my glucose the day after when I change my exercise routine, such as doing an extra LISS session. Anticipation of something stressful or exciting does also have an effect. I haven't noticed any effect from simply expecting more exercise later (without emotions attached). I believe a lot of this comes down to liver and muscle glycogen storage and release. (I'm T1)