The Phasmophobia controls for PC won't be too alien for survival horror players but there are some strange ways some items work that might trip players up and cause them to waste valuable time.
If you're playing on PC or in VR for the first time, you'll want to play the training mission (link training guide here please) first. It will show you the basic controls for movement and interaction. For PC, this is "wasd" to move, "shift" to sprint, "ctrl" to crouch, "v" to push to talk on a local game, "b" on a global game, "t" to use your flashlight while unequipped, "q" to switch through items in your inventory, "j" to access the investigation journal, "e" to pick up an item, "g" to put an item back, right-click for primary use and "f" for secondary use.
Phasmophobia Controls PC: How to Avoid Making Mistakes
What right click and "f" do will depend on the item. For example, the camera, uv flashlight and EMF reader are all turned on with right click and the camera is placed with "f." However, the journal used to record ghostwriting is placed with a right-click. The camera and spirit box can also only be used in the dark.
Make sure you understand where each hotkey is placed and how to use the items correctly, or you'll be in the midst of a ghost hunt, clicking the wrong buttons.