Search: most distros have these functions, Unity is very much like Windows search in that it's equally useless and messy, but the search functions of Gnome, KDE (many choices there, you can pick the one you prefer), XFCE (Catfish and Whisker), etc... are much easier to use and give better and especially more relevant results, and don't slow down the system by indexing it for hours on end. Some search functions are only available on linux, like the image or sketch based search or face recognition (of the privacy aware kind) in Digikam, that's technology that Windows doesn't even come close to.
Gparted is one thing, Gnome disks, the KDE partition manager, or even the CLI drakxconf utility, are all more powerful, more reliable, and more user friendly than the Windows partition manager, not to mention that the Windows partition manager is a joke, because it doesn't even work with modern non-fragmenting fast and secure file systems, and can't even make a partition of more than 2 GB, etc... and the graphical representation of the partitions in Windows partition manager is very confusing, and if you want to get real work done, you have to hit the command line in Windows and use chkdsk /f.
On linux, you get automatic notifications of updates centralized, and you never have to worry about software sources, and all software operations, installs, deinstalls, updates, upgrades, are all easily and clearly accessible in a central GUI software center, whereas Windows is complete chaos, you have to spend time updating every application separately, the Windows update functions blocks the computer pretty much and is not transparent in what exactly it does, you need to restart for the slightest change, and you need to always check for patches and anti-malware updates manually, without any form of centralized software management application.
All my friends use Linux, and my father (70+) is an active community developer for a few linux-based open source projects that he really likes. Every time I ask a Windows user a question, it seems that they have no real answer, the most popular answers seem to be "try restarting the computer" or "try reinstalling windows", but other than that, if I want a real answer, I have to search the KB for hours, the KB which doesn't even have a decent search function...