Yeah. The problem is that I already deleted my library, so I don't know what will happen if I try to relink all the files and then sync. lol
I'm afraid to check, to be honest.
I've deleted an app entirely and redownloaded it again and I believe done the same by putting the app back before restoring and I believ it doesn't skip a beat, it's like it was never gone.
I think. Not positive.
Photos, PDFs and other types of big documents can take a lot of space if you use iCloud for that sort of stuff.
Hmm, can't say for sure but I think it would be fine. From my experience, all that matters to iTunes is that it still has the app icon existing in the apps section when you sync, even if you don't have a file linked to it, so if you get your library back in there there's a chance it won't make a fuss. Likewise, when I download an app through my phone and sync it, it automatically copies the .ipa to iTunes, and if I remove the .ipa from the Mobile Applications directory it will keep the icon in the library and won't delete it from the device in following syncs.
Hopefully they won't change it haha, it's an integral part for me to keep my SSD free without having to keep a big local backup, and I'm really anal about keeping a backup of my apps due to some problems I had with my Apple ID some time ago (region-related changes, App Store launching in my country, credit card not being accepted in the store I used before, managing more than one account, that sort of stuff). Maybe the apps library works differently because you can only have apps from the App Store and can't add any from other sources, I don't know.
Yah I manage two different store accounts. Can be finicky.