Do yourself a favor and stay away from these tools, especially, if they come from YouTubers like CTT. Most YouTubers are entertainers and not security experts.
Clueless I still feel a bit "naked" using Windows.
You can make Windows a lot more secure by applying Microsoft's security baselines and WDAC. This will make Windows quite secure for a desktop OS. You might also want to take care of most privacy invasive stuff with WRTLFB, but you need to patch it to not block security related things like Windows updates. It will take some time, reading and learning and getting used to group policy, but might be worth it if you want to stick to windows and harden it.
Clueless the UI of Windows 11 is beautiful and mostly really user friendly
The UI is fine indeed, although still not consistent, especially the settings and configuration menus are still a mess. Windows is just user friendly, if you use it as is without a lot of hardening and don't worry about all the little privacy-invasive things you need to take care of and you are used to using Windows. Once you are used to a few years of using Linux distros, and you come back to windows it might feel the other way around. I use both and feel more home on Linux, despite having spent way more years on Windows.