I disagree with this "older outdated design" theory, I'm pretty sure many apps that are still currently developed, that yes, while not app store apps, like Docker are current and install an icon onto the desktop... It is something installers should be able to do, if they can't, strange things may happen during the installation process, such as blocked installations, partial installations, rolled-back installations, installation errors, installers that drop out of the process. Since the update I have had all of these things occur, and never had any problems with it before that. Controlled Folder access seems a good thing to have enabled, but the desktop is not able to be removed from the list. Programs (such as installers) should be able to function normally without being security-hobbled. Its much like a similar problem that still exists with IFS drivers since the Anniversary update requires them signed, HFS+ and EXT2 (or later) drivers are mostly not digitally signed thus "unsecure" thus unable to function when they were working perfectly fine before that.
Microsoft seems to be making their system less functional and more restrictive, in some ways there may be advantages, but all I've come across with them so far is blanket blocking techniques that give me less functionality out of my operating system...