For anyone that refuses to downgrade win10 to win11 and still wants to be secure running windows, 0Patch will cover your computer for 25eur/computer/year.
I've never used them, but a security researcher I follow regularly promoted them since they've been doing this for systems for a good while (I think win7 was the first one they did) and are able to apply their micropatches in memory.
Definitely worth a look if you don't want to upgrade to Linux while not downgrading to win11.