what is it?

a FUSE adapter that lets you mount and access Cloud Storage buckets as local file systems, so applications can read and write objects in your bucket using standard file system semantics

updating the driver

following the instructions here

add the cloud storage fuse distribution url as a package source and import the google cloud public key

export GCSFUSE_REPO=gcsfuse-`lsb_release -c -s`
echo "deb [signed-by=/usr/share/keyrings/cloud.google.asc] https://packages.cloud.google.com/apt $GCSFUSE_REPO main" | sudo tee /etc/apt/sources.list.d/gcsfuse.list
 
curl https://packages.cloud.google.com/apt/doc/apt-key.gpg | sudo tee /usr/share/keyrings/cloud.google.asc

update list of available packages (might have to add --allow-releaseinfo-change ) and install latest version of gcsfuse

sudo apt-get update --allow-releaseinfo-change
sudo apt-get install gcsfuse