How to "Free up space" locally on my Linux device?

Hi there, JYoungCommercial​, let's jump right into this!

So, if you'd like to free up some hard drive space without deleting files, you have two options:

• You can use selective sync to remove entire folders from your Dropbox folder
• Or you can make your files online-only
  
  

Keep in mind that when using selective sync, the folders will be gone from the Dropbox folder, but they'll still be available on our website and other linked devices.

When making files online-only, the files will still appear in your Dropbox folder, but they'll change into placeholders with no physical size so they won't take up space. If you want to keep your content available locally you can choose to make them available offline. Based on what you described and asked it sounds like this feature would better suit you.

I hope the articles I hyperlinked provide enough info for you, but if you have any questions, feel free to let me know.

Thanks!