That looks a lot like some kind of PDF file contents in your file.
I understand your frustration with the situation. It’s just as frustrating for us to see users lose their work, especially when we have no idea how to help.
Generally, I consider the chance that Obsidian causing this kind of corruption to be very rare. Our deployment pipeline goes through thousands of insider testers before reaching public builds (which you are using right now), used by some 50k+ active users (stats from GitHub downloads). If this was an issue with Obsidian itself, it would be seen much earlier and we would have gotten many bug reports about it.
The most likely cause for corruption usually comes from a few things specific to your setup:
- Community plugins you may have installed
- Other apps running on your device which also has access to your vault folder, especially synchronization apps
- Possible filesystem issues, such as using a networked drive, or a USB drive that you disconnect abruptly.
If you’ve recently modified those files (within 7 days), you may be able to recover them from the File Recovery core plugin by going into Settings. Given the dates on your file name I’d say you probably didn’t.
The next best thing is probably to attempt to recover the file from a disk recovery software. The success chance isn’t great, but it might be worth a try. On Windows you can use the free tool called Recuva.
I use Obsidian in Windows 10 and in Linux
How are you synchronizing your files between the two? Most sync providers have some kind of version history tool you can use to recover previous versions of files - may be worth looking into that too.