Windows 11 Pro:

I use a stripped-out install with Local acct. Copilot, Recall, Bing links, Cortana, OneDrive removed, and Gpedit the hell outta the rest. Then, I wrap a candy shell of Win10 Privacy around the OS for select privacy-related tweaks. Nothing streaming in the Start Menu/Explorer. Edge has been put to sleep.

Firefox + Extensions:

1. A few about:configs

2. Scriptsafe: (Same concept as NoScript, but finer control if willing to learn).

3. uBlock: (Does 90% of the job + their Element Blocking is the shizznit.)

4. ClearURLs: Automatically remove tracking elements from URLs. All URLs.

Android Devices:
1. Root device (First move outta the box)

2. Replace default OS> now systemwide ad blocking on root level.

3. What ads?