Chrome Version:  71.0.3572.0
Chrome OS Version: 11143.0.0, 
Chrome OS Platform: Eve
Network info: WiFi

Please specify Cr-* of the system to which this bug/feature applies (add
the label below).

Steps To Reproduce:
(1) Install gedit.
(2) Open Files app and Linux files folder.
(3) Create file and save using gedit.
(4) Check for saved file in Linux files folder.

Expected Result:
- It'll be shown in folder immediately.

Actual Result:
- No file observed. Changing folder or close and open of files app is showing the file. 

How frequently does this problem reproduce? (Always, sometimes, hard to
reproduce?)
Always

Please check below observation video.