I've had the displeasure of using machines with Mcaffe software that installed a filesystem driver. It made the machine completely unusable for development and I'm shocked Microsoft thought making that the default configuration was reasonable.
Copying or moving a folder that contained a .git folder resulted in a very large number of small files being created. To this day, I'm not sure if it was the antivirus, the backup software, or Windows' built-in indexing, but the computer would become unusable for about 5 minutes whenever I would move folders around. It was always Windows Explorer and System Interrupts taking up a huge amount of CPU, and holy cow was it annoying.
Even worse than that, moving a lot of small files in WSL reliably BSODs my work machine due to some sort of interaction with the mandated antivirus on-access scanning, making WSL totally unusable for development on that machine.
