When I use the "New Query" option on Azure Resource Graph Explorer page, the "Run Query" button is disabled.
Yes, It is disabled at first as there is nothing to run or execute like below:

Then when I enter a character like below and run query is enabled as below:

Ran sample query as below:

then my query:

You can see it has changed, If you are seeing same results then I guess then the results of both queries are same even after filtering or producing same outputs.
Now trying with saving a query:

Sometimes, when you are saving it, it does not save immediately:

Its still showing previous saved results(as the results are not saved even after saving):

You need to click on Save or Ctrl S for 2 or 3 times then it will be saved:

This is a expected behavior in Azure Resource Graph Explorer.