A possibly unworking attempt at writing a bash script to automatically delete your steam deck Vampire Survivor save files after backing them up (this works) and a shitty restore function (untested).

vs_backup_restore.sh

#! /usr/bin/bash
# the directory of the script
DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"

# the temp directory used, within $DIR
# omit the -p parameter to create a temporal directory in the default location
WORK_DIR=`mktemp -d -p "$DIR"`

# check if tmp dir was created
if [[ ! "$WORK_DIR" || ! -d "$WORK_DIR" ]]; then
  echo "Could not create temp dir"
  exit 1
fi

# deletes the temp directory
function cleanup {      
  rm -rf "$WORK_DIR"
  echo "Deleted temp working directory $WORK_DIR"
}

# register the cleanup function to be called on the EXIT signal
trap cleanup EXIT

function backupgame {

	echo "Backing up your game files to the Desktop as VSBackup.zip"

	# copy renderer folder
	cp -r ~/.steam/root/steamapps/common/Vampire\ Survivors/resources/app/.webpack/renderer $WORK_DIR/renderer

	# copy SaveData folder
	cp ~/.steam/steam/userdata/*/1794680/remote/SaveData $WORK_DIR/SaveData

	#create zip of backup data
	cd $WORK_DIR && zip -r ~/Desktop/VSBackup.zip ./*

	if [[ ! "~/Desktop/VSBackup.zip" ]]; then
		echo "cannot find zip backup, aborting.."
		exit 1
	fi

	read -p "Successfully backed up game files, do you wish to delete them and reset your VS progress? (Y/N)" deletechoice

	if [[ $deletechoice == "Y" ]]
	then
		echo "deleting current VS save data"
		rm -rf ~/.steam/root/steamapps/common/Vampire\ Survivors/resources/app/.webpack/renderer
		rm ~/.steam/steam/userdata/$udataid/1794680/remote/SaveData
	fi

	exit
}

function restoregame {

	cd "$WORK_DIR"
	read -p "Please enter the path to your backup zip file.  " zippath

	unzip "$zippath"

	cp -r $WORK_DIR/renderer ~/.steam/root/steamapps/common/Vampire\ Survivors/resources/app/.webpack/renderer 

	cp $WORK_DIR/SaveData ~/.steam/steam/userdata/$udataid/1794680/remote/SaveData


}


read -p "Please enter your userdata id # found in ~/.steam.steam/userdata/{this value}" udataid

if [[ ! "$udataid" ]]
then
	echo "you didn't enter any data for the user id"
	exit 1
fi

echo "Welcome, do you want to backup or restore your game (B/R)"

read -p "Please choose:  " brchoice

if [[ $brchoice == "B" ]]
then
	backupgame
fi

if [[ $brchoice == "R" ]]
then
	restoregame
fi