I've always wanted to share ideas with the devs in terms of new characters and map ideas but I'm not sure if they'll take community ideas into consideration.
There is a specific subforum here for suggestions and feedback. You can post any ideas there. They do look at them but I don't know how often.
We do have a specific sub forum for this: https://forum.deadbydaylight.com/en/categories/FanCreations
And yes it's checked regularly, by quite a few of us.
It's fan creations, not suggestions & feedback.
My bad. It used to be suggestions and feedback. Or at least that was where I used to see them moved to.
That's ok. I'm just letting you know.