System Data taking up large amount of space

embrazz wrote:

My System Data is taking up 154GB of my data. I have tried to clear everything that I can but it is still not reducing. Does anyone have any solutions?

Why is the necessary to reduce the System Data ?

Does the computer exhibit unusual behaviours ?

Does the computer run slow and takes a long time to perform normal functions ?

Does the computer sometime present a " Warning " that it is " running out of space " ?

From another similar question as it relates to Reducing System Data

Reducing system data usage on my new MacB… - Apple Community

If you did a search here, you will find literally hundreds of posts on this exact topic that includes what "system data" is, and isn't. You would also find potential options on how to deal with it.

How to reduce System/Volume/Data is an often asked question 

This is page 1 of 2 >> Search - Apple Community

There is no simple One Size Fit All answer for reducing this 

The more  popular and effective way to address this issue is to Start Over from Scratch 

For Apple Silicon computer >> Use Disk Utility to erase a Mac with Apple silicon.

For Apple Intel computers >>   Use Disk Utility to erase an Intel-based Mac followed by How to reinstall macOS

Always make a Time Machine Backup  before  proceeding 

It is also suggest to  Only Migrating the User Account and nothing more.

Emphasis on User Account Only

Reinstall the Needed and not the Wanted applications from the Apple Apps Store or Directly from the Developers