macOS 11.5.1 / Adobe Illustrator 25.3.1

[on macOS] when saving files only the filename is selecetd, not the extension. It used to be fine with Adobe apps until some versions back suddenly the whole file name including extension is selected in the Save as dialog.

Adding some text used to be easy. With a tap on the right arrow key the cursor moved between de file name and the extension. When I do this now the cursor is placed after the extension so I have to use the mouse or left arrow key to move the cursor 3-4 positions back. This may be OK on Windows but it is definately not Mac behaviour.

Please fix it.

Enclosed is a sample how a Save as dialog should behave in macOS.