How can I disable the notifications shown at bottom right corner in pgAdmin 4? The notification window at bottom right corner is pesky. Is it possible to disable it?
Changing the value in Query info notifier timeout to -1 it will disable it. This is documented in the official pgAdmin documentation in the Preferences Dialog help as:


  Use the Query info notifier timeout field to control the behaviour of the notifier that is displayed when query execution completes. A value of -1 will disable the notifier, and a value of 0 will display it until clicked. If a positive value above zero is specified, the notifier will be displayed for the specified number of seconds. The default is 5.