I do not install anything from Facebook. Now talking about ZStandard as en example: Those libraries are part of the tools I use, such as the file compression tools. And even MAME emulator supports this and other applications, to have some fast decompression without long wait times. I even use it for my backups. I don't know how Facebook could do something in such cases. And for CRAM, this would be integrated into the Kernel with same standards as Linux.

I would understand the concerns if we speak about downloading and installing from Facebook directly. But that is not the case here.