Since my Macbook Pro (Big Sur 11.6) is burning through its battery power really quickly with mds_store clocking the most CPU usage, running the following command
sudo fs_usage -w -f filesys mds_stores
shows that /System/Volumes/VM/swapfile10 is commonly being used by mds_store. Running sudo fs_usage | grep /System/Volumes/VM/swapfile10 shows that this file is constantly being used by Brave Browser.
However, when I tried to exclude /System/Volumes/VM/ from being indexed by Spotlight by going to System Preference > Spotlight > Privacy, I get a Privacy List Error, stating that
The item couldn't be added or removed because of an unknown error.
How can we fix this and exclude the directory from Spotlight indexing?
