It's up to each person about how much information they want to know. For me, I looked up my surgery, what I'd look like on the table and what a tongueless mouth looks like. I read so much information in here and looked up pictures. The only thing I forgot to look up was the picture of an arm after the muscle is removed for reconstruction, so it shocked me for a second when they took off the dressing.
The information helped me ask relevant questions to my team, and it prepared me for everything so I didn't worry. I was told I was one of their calmest and informed patients. It also meant they gave me loads of information during my visits, and the reasons why things happen or why they wanted me to do certain things (like eating extra protein)