I have a desk with a section for a PC. The problem is my case is pretty tall. I’d have maybe an inch and a half of clearance above it. The case has 2 fans in front, 1 in the back, and 2 on top. I’d put it on the floor if It wasn’t carpeted. Thank you!
You’re fine. The fan in the back is the only one getting air out of the case, so having 2 fans with “not great” airflow is not really gonna make a difference. An inch of clearance is generally the minimum, think of how your power supply can get air from the bottom when it’s only raised an inch from the floor.