Regularly being presented with a "Set up Windows" after boot forcing you to click "no thanks" on a bunch of Microsoft services is exactly the kind of thing that irritates me. I've politely declined their services about 10 times already, make it stop!
When I get tired of Battlefield 6 I'm likely going full Linux. It is simply not worth putting up with Microsoft Windows for gaming. More and more games seem to work either directly on Linux or at least via things like Proton (courtesy Valve Software).
You can disable that behavior in the settings app.
And then Windoze decides it knows better and optimizes your settings right back.
I got one of those external drive enclosures for an NVMe drive after I upgraded.
The only reason I still have Windows is the little screw securing the drive into the enclosure is in the wind and I can't be bothered to find it (for backup of all of my things so I can delete windows and install linux)