I was thinking about the act of looking for battlemaps, and was wondering when, in pre-planning, did you ever decide that a scene was important enough for a battlemap?
Example 1: A room where you expect the heroes to be ambushed. Definitely needs a battlemap.
Example 2: A room where the characters are discussing work with an NPC that could turn on them at any moment if the discussion goes south. Definitely needs a battlemap.
Example 3: A warehouse where I expect no combat to take place, because all the enemies were supposed to have died long ago. Probably doesn't need a battlemap?
I was wondering what your own criteria are. In case it helps, I'm working with Pathfinder 2E.