Short answer is: yes, as soon as more than one OS mounts a file system in read-write mode.
The kernel of a modern OS (I am generously including Windows here) caches file system data structures in memory. When you hibernate the computer, the content of that memory is written into a large file because that speeds-up a later restart.
Now, if you boot up another OS, and modify these partitions (without mounting them read-only), you alter the file systems data structures. That happens already when you view folders because this modifies access times stored in the inodes.
When you now shut down the second OS, and resume the first OS, the restarted kernel will have and use cached file system metadata which id loaded from the image into the kernel, that does not match that of the files on disk. And this causes file system corruption by definition.
When you say hibernate do you mean sleep, because my understanding was proper hibernate writes the image to disk of the memory, and reads that back in on next boot. PC is totally off during proper hibernate
No, I mean hibernate, with the PC turned off. In sleep state, you return to the running kernel/OS, so no possibility to boot into another distro, therefore no risk of filesystem damage.
The crucial thing is that file systems need to be unmounted before they can be accessed by another distribution or OS.
see
https://askubuntu.com/questions/55527/dual-boot-and-sleep-hibernate-issues