This is common for me as DX is called time and time again but never purged when shut down.
Even with a memory manager this happens so I get about 10 to 15 runs before I have to restart to purge and go hard out again.

No real solution yet but as you say, it generally happens with GStudio, mind you, its the only editor I have worked with for over 4 years so I cant say that it is inherently the faullt of GStudio hence the note on DX (above) related apps that are called often.