In UE4, the Save All button was always visible so it was easy to click it every now and then to save both your level and any changed assets in the Content Browser.
UE5 has carried the same buttons across, the Save All button on the Content Browser and the Save button on the toolbar at the top. The problem now with the hidden Content Browser is that now the Save All button is hidden. So in order to ensure you save everything from time to time (in case the editor crashes), you have to open the Content Browser first. The Save button on the toolbar doesn’t cut it as it only saves the level.
I know it’s just an extra step to access the Save All button, however this extra step results in saving less often, because humans are inherently lazy by nature. Saving less often is a bad thing as all it takes is an editor crash and you can lose hours of work, just simply by forgetting to hit the Save All button as it is hidden… out of sight, out of mind.
To solve the issue, I believe the Save button on the toolbar should be the Save All button. I can’t think of a scenario where you would want to save your level, but not the blueprints and other assets you’ve created as well.