Surprisingly easier than I thought.
No - strictly because I gutted windows update via a Windows Lite tutorial. Basically it’s an evergreen Windows OS that I’m using, so I never have to worry about Windows messing the boot. SteamOS will sometimes bork it, but I use Clover as my dual boot solution and it’s fairly easy to recover.
The trouble with a stock Windows OS is the frequent updates, to the point of your question. I do believe there are ways to mitigate it, but does require a bit of prep and being aware of windows And its updates.