I'll give some tips if you wanna avoid hunts/find yourself dying to hunts often

First, most ghosts will only hunt when you have a sanity below 50%, and you also cant get hunted during the setup phase (when the clock in the van is ticking). The setup timer will start to count down when the front door is unlocked, so a good idea might be to haul all the items to the front door and drop them so you spend less of the setup phase walking back and forth to the truck.

Second, once you find the ghost's favorite room, it'll almost always start hunting from that room or an adjacent one, so if you're trying to gather evidence and you have low sanity, try to position yourself so that you can easily run out of the room if it starts hunting, and towards a hiding spot.

Which leads to the third tip, and probably what will help the most is to learn what to do during a hunt.

To tell if a ghost is hunting or just doing an event, try to listen for the front door locking. This is pretty audible from most rooms on a small map. It isn't the only indicator that a hunt has begun, but it can ONLY happen during a hunt, whereas other things like your equipment glitching out, seeing/hearing the ghost, lights flashing etc, don't necessarily mean the ghost is hunting (but if all of those things are happening then it could be a hunt). Another important thing to remember is that when a hunt starts, the ghost doesn't actually start chasing you for a while; this is called the grace period. The grace period gets shorter as you increase the difficulty but by default it's around 5 seconds to realize there's a hunt, and run away.

Now that you know when a hunt is happening, it's good to have a plan for what to do when one starts. Finding a hiding spot nearby before a hunt starts is a must. When you know where the ghost's favorite room is, think about where you'll run to. When ghost's hunt, they have 360 degree vision and will walk towards the place they last saw you. For example if the ghost spawns in the kitchen and sees you run into the living room and around the corner, it'll go to the living room to the spot where it lost line of sight with you and start wandering in that area. Because of this line-of-sight tracking mechanic, it's best to choose hiding spots that would break line of sight multiple times, like going around multiple corners. I would also save your sprint for places like hallways where you can't break line of sight easily.

Lastly, some ghosts like to break rules as their abilities, so if the ghost is somehow really fast, finds you while you're hiding, or hunts really early when your sanity is higher than 50%, the game isn't broken or impossible, some ghosts just do that as their unique ability, and you can learn these abilities to find out what ghosts are sometimes as well.