Cannot access to offline files from Android file manager

I’m totally unable to find the folder where my OwnCloud files are stored in Android 12. I mean the files marked as available offline. I want to setup an obsidian vault and this makes obsidian unusable to me. Also, the “Files” app can see the OwnCloud storage as remote storage, but the built-in files manager doesn’t. I’d like to know if there is a workaround or if I’m doing something wrong. Thanks.