What you are calling 'spyware' is called Telemetry to every business with an online presence today. Want to not be tracked by any sort of telemetry? Your only solution is to not ever go online or use a cell phone. The level of stupid misinformation is astonishing, especially for something that has widely been known to have been backported to Win7 long ago. Switching to Linux isn't going to stop Amazon and Google collecting telemetry from when you browse online either, and yes even 'incognito' still sends some sort of telemetry.
There are plenty of tools available to disable all telemetry from all versions of Win10, but be prepared to also break updates, upgrades, and driver downloads as well. LTSB/C is not a solution for anyone that refreshes their setups every so often, such as a change of CPU. A lot of software will nag you are on an unsupported version of Windows or flat out won't install since LTSB/C is always behind. Newer hardware such as printers and mice are starting to come with Apps you have to install from the MS Store directly. If you are going to stay on a PC that will never have its hardware/software changed and only has one function, then have a go at LTSC.
You're worrying about Microsoft while ignoring the rest, there's more than one finger in your information pie. Want to disable telemetry completely from all sources? Unplug your modem and then toss out the window along with your cell phone.
First of all until you are a complete tech newbie or something you should now that Google's incognito is BS.
There are steps that you can take to not get tracked, it's not impossible. Some of the things that I am going to count right now are based on Snowden (search it if you even don't know him)(There are some security tips too):
For PC:
- No ad and encrypted mail service: Tutanota, Protonmail (Use aliases)
- Browser: Brave, Tor Browser or Firefox(you need to do some configuration and extensions)
- A new Cloud Storage: Nextcloud
- Password Manager: Bitwarden
- 2FA for all accounts possible
- Use Linux! (For Begginers: Manjaro, Ubuntu,...)
Mobile (Android):
- Download LineageOS or GrapheneOS If possible. Disable all personalization settings If you couldn't download them.
- Download and setup NetGuard.
- Use Signal instead of Whatsapp.
- Use DuckDuckGo or Brave as your Browser.
- Download an open source 2FA App.
- If you love social media then use web-app versions of them.
This is a real quick guide on how you can protect your privacy on Internet, this isn't perfect but it's better then just sticking a paper
on your head which says "please take all my private data and sell them to random companies."
Additionally, I would suggest for you to read the title of this thread "Is Windows 10 Safe?" so we are only discussing Microsoft.