Is there a reason why pore size appears different depending on skin condition?

Even though I have the same skin, some days I barely notice the pores around my nose and cheeks, while on other days they look unusually large, so I am curious about the reason.

On days when I get enough sleep and moisturize well, my skin is relatively smooth, but on days when I am tired or have stayed indoors for a long time, my skin becomes rough and even my pores look much more distinct.

Actually, pore size shouldn't change from time to time, so could it appear that way due to the skin's moisture or oil status?

In this case, I am wondering if it would be better to stabilize my skin condition first rather than looking into pore treatments right away.

I would like to know if the necessary care for the same person can vary depending on their skin condition, and if discussing my usual skin changes during the consultation helps determine the direction of the treatment.