Nope, I've actually had it opened for multiple days and just walked away and come back and it has been fine. I've had a few occasions where I restart it cause of something, but not like you are describing. I have two machines I run the intellj IDE's on, m1macpro and a intel based macpro, neither has any issues.
I am also not doing Java, primarily either node.js or C/C++, or I am using DataGrip.