I have googled everything, I am desperate. I have installed Catalina yesterday and tried all the steps here (and more) that were logical to me. The thing is I have the feeling the current version has changed again (I read of the stuff you could do to get system read/write on Catalina but nothing works in my case). I have a parallel MacOS / Windows System with a third exFat partition and in Mojave and Lower I always create links for /Applications and /Users to put all non systemrelevant data into the exFat, it always worked fine (though, you have to make some adjustments in order to work with iCloud apps etc). I wanted to do the same, so I followed all the normal steps to create links for /Applications (also tried with /System/Volume/Data/Applications). But it does not work at all. Usually for example I ditto the /Application to the exFat partition and mv the old one into /Application.old (just to be safe), then I create the link. But I cannot rename or delete /Applications! Is it because they created Hard/systemlinks in Catalina?? I don't get it. Will I be able to link out the folders to my exFat partition? Any suggestions?