[Help] Change Alert Volume Device without changing my current audio output

Hey, any tips on adjusting my MacBook Pro speakers (which is System Sounds/Alert Device) to 100% without changing current audio output (dropping my AirPods Pro)?
Is there native way without installing 3rd party utilities?

Here is my current ugly way to solve this:

# Capture the current output device name
current_device=$("/opt/homebrew/bin/SwitchAudioSource" -c -t output)

# Switch to built-in speakers and set volume to 100%
"/opt/homebrew/bin/SwitchAudioSource" -u BuiltInSpeakerDevice
osascript -e 'set volume output volume 100' -e 'set volume alert volume 100'

# Sleep for a delay to ensure the commands execute properly
sleep 1

# Switch back to the previous output device by name
"/opt/homebrew/bin/SwitchAudioSource" -s "$current_device"

# Switch System to built-in speakers 
"/opt/homebrew/bin/SwitchAudioSource" -t system -u BuiltInSpeakerDevice

Here is my updated script that utilizes it:

#!/usr/bin/env bash
set -euo pipefail

SAS=/opt/homebrew/bin/SwitchAudioSource
VC=/usr/local/bin/volctl

# send UI alerts to your MBP speakers
$SAS -t system -u BuiltInSpeakerDevice

# make sure the input device is the built-in mic
$SAS -t input  -u BuiltInMicrophoneDevice

# (optional) give CoreAudio a quick moment
sleep 1

# max out the hardware sliders
if ! $SAS -c -t output | grep -q "MacBook Pro Speakers"; then
  $VC set "MacBook Pro Speakers"   1.0 output
fi
$VC set "MacBook Pro Microphone" 1.0 input

# (optional) give CoreAudio a quick moment
sleep 1

# crank only the input & alert sliders—leaving your AirPods’ output alone
osascript -e 'set volume input volume 100 alert volume 100'

Doesn’t AppleScript

set volume alert volume 100

work?

For some reason alert volume on macOS does not affect other system alerts such as screenshots sounds, or other applications alert sounds.