All my Windows 10 systems are set to airplane mode, permenantly offline. I hate how flat it is (I've themed it, but it's not easy on the latest build) and how it wants to update itself whenever it feels like (I don't believe in updates, since iOS 7 ruined iOS after an 'update') but since all the content on those few systems are offline or can be modified via thumb drive, I don't have to worry anymore about security or privacy risks, much less an update changing what should be left alone.
As for the remarks about 'afraid of change' or 'living in the past' the real term is "if it ain't broke, don't fix it' and 'change for the sake of change is always a bad idea'
I only ran Big Sur as of Beta 4, and it had already gotten flatter by then, and I'm quite sure it's even flatter now, given Apple listened to all the skeuo-haters who blew up their 'feedback assistant' app. It's like every 20-something or under wants to stay in flat land forever. Only those young enough to have never lived through flat UI's first iteration would obviously see it as 'modern'. All I see is flat UI users 'living in the past' (see what I did there?) It's a regression to an 80s-90s Interface ala Windows 1.x and DOS. If that's modern, well, I suppose to them, an i386SX is modern as well.
The 80s had some great music, tv shows and movies, and some very nice cars, but I want to live in the actual future/present not the 80s era of computer graphics design. It was bad enough living through it the first time. Flat UI needs to die an ugly death. We are no longer limited by 8-bit CPUs, tube RAM, or 30MB MFM Hard drives, or floppy disks. Time to move on, indeed.