neowin[.]net/news/sharpapp-0421
This one might be a bit harder to explain. It lets you change some privacy settings in Win10, & lets you remove some of the bloatware & preinstalled features you don't want. It can also install apps from Windows new app repository. It's not an app like CCleaner, but a portable front end for PowerShell & Windows Package Mgr. As such it can *potentially* do much more than similar but self-contained apps, But, I'm unsure if every setting or script will work with the Home version of Win10, e.g. setting group policy to keep the original Edge alongside the new, Chromium-based version works with Win10 Pro, but Not Home.
OK, so what's PowerShell?... It's a command line scripting programming environment with many build-in functions -- I think the best comparison is to Visual Basic for Applications, that let you write macros for Word & Excel. It requires .NET, & like .NET comes in Windows & Core versions -- core for non-Windows OSes like Linux, but it also will run alongside the Windows version in Windows. The Windows version has more functions or "Cmdlets".
en.wikipedia[.]org/wiki/PowerShell
A Package Manager works based on an online repository of software. A package manager is invaluable to Linux, where I think it's the dominate way to add/remove/update software. With Windows, package managers are used more often by corp. IT to add or update software on many PCs &/or laptops at once. Windows now has a new package manager & repository all it own --- in the past one of the more popular package managers was Chocolatey.
en.wikipedia[.]org/wiki/Package_manager
chocolatey[.]org/