A lot of it depends on how and why they depart. My dad went into the hospital with kidney, lung, and cardio problems, and it was rough for a month, but we all knew (and I think he did too) that he wasn’t going to ever go home.
My therapist asked me if I had any unfinished business with my dad, and I honestly said no. He knew I loved him, I knew he loved me, and we had made peace years before over whatever fathers and sons disagree over. It was still sad when he died, but it was not a surprise and it ended his suffering. So I was not devastated.
And the same thing with a friend who everyone loved who was in ICU for a year awaiting a liver transplant that ended up being a liver and bowel transplant. When Hank died it was sad, but again, everyone, including his teenage daughters, was finally at peace in some ways.
But it was devastating when a local 15 year old committed suicide last January. The whole town was set back, and many people are still in a bit of shock about it.