Process run with nohup gets killed on client_loop: send disconnect: Broken pipe

I have observed the following and want to understand why: First, I run a Node server that listens on a port on a remote server using:

nohup my-app &

Next there are two cases: 1. I logout of the remote server using exit. I call this graceful logout 2. I do not logout gracefully but instead have a forceful logout due to my local machine going to sleep after extended period of inactivity or something like that. In this case I see a message printed on the screen that says client_loop: send disconnect: Broken pipe When I log back into the machine, in case 1 the process is still running but in case 2 it is terminated. Why? And to further add a twist, case 1 and case 2 behave same on Mac but not in Windows (using WSL2). I am very curious to understand what's going on here and why do Windows (WSL2) and Mac behave differently.