Settings -> System -> Notifications. Scroll to the bottom, expand Additional settings. Uncheck "Suggest ways to get the most out of Windows and finish setting up this device" and "Get tips and suggestions when using Windows".
I get more prompts from macOS about Apple products than I get from Windows about Microsoft products after unchecking those two settings.
Even more true now than it has been in maybe 100 years.
I did uninstall all of the weird apps like "News" "Weather" etc.
I have a Garmin Fenix 8 - the latest flagship. I love the look of the watch but it does not feel snappy to use in any way- significant lag after each button press. Not enough to make me immediately go back to an Apple Watch but I do miss the snappiness.
But the Connect app is actually pretty good in terms of a central place to look at the stats.
It reminds me of Apple's 1984 commercial, except that Apple users are the ones sitting down, all looking identical, drinking the Kool-Aid from Big Brother.
My iPhone seamlessly adapts to my working context using focus modes automation - Android still doesn’t do that; maybe they have launchers with equivalent features.
Android makes it easy to customize the things I don’t want to customize, and hard to customize the things I do.