On RPi 3B/Raspbian, I'm experiencing dreadful seize-ups when it appears I've filled the memory up with programs. Mouse movements, for example, can take 10 seconds.
This happens with a standard setup.
Is there a way to set the system to mitigate against this, by, for example, warning the user this may be about to occur, so reconsider starting that additional app/opening that additional data-heavy browser tab?
Any elucidation on the mechanics of this situation would be most helpful.