Today, while I was trying to find out why my cache drive was filling up, I found a lot of folders/files that look like remnants of older dockers I may have installed, then deleted ( all under /appdata folder)

I suspect this is by design, or is there a way to prevent this happening?

Is there an easy way of safely deleting this obsolete folders and its files? I don't want to delete files that may be required for the "live" dockers

 

Thanks

By design so that you can easily reinstall if you have to

 

You can delete the ones you no longer have any need of via command line or Krusader (or alternatively Appdata cleanup plugin -> but double and triple check what it offers to delete)