No they aren't. There is no "perspective" dictated in PnP. The GM might say "You step outside the bar and see a beached manatee. How did it get there when there's no water for 100 kilometers in any direction, is beyond comprehension", but how you interpret the situation in completely up to you. Are "you" looking at the manatee, or do you vision your character looking at it - it makes no difference.
Uhhh...there kind of is. Sort-of.
PCs can't see more than they can see, unless using drones or cameras or what have you.
Especially important in CP2020, which I've been running a lot recently. If you can't -see- it, you can't -spot- it and all the horrible things it can do to you.
So although I actively encourage the visualization of the setting and their PCs from a cinematic view, I mostly encourage them to see -through- their character's eyes - very important to see only what their characters can see. No isometric/TPP "safe" vision.
Plus, well, it's more immersive. What? It is. You're there!