Windows 10 is Windows 10. Regardless of the version you buy, it all looks the same when you first buy it. The difference between the versions is that each version has either more or less features than one of the other versions - which is no different from previous Windows operating systems version variations.
The only thing I didn't like with Windows 10 were the tiles on the desktop. After removing them, and getting my desktop to look like Windows 7, I was fine with it. Change doesn't bother me that much, but those tiles on the desktop was one thing I just couldn't stand.
You can also install the Classic Shell program to do a complete overhaul of the visual aspects of Win 10 to make it look 100% like Windows 7. I didn't install that - as I said only the tiles on the desktop bugged me - but I do know some people that have done that and are satisfied.
This notion that updates then change your settings back is not 100% true. I have had Win 10 from the get-go and the only thing updates have ever done is keep turning the windows media player off. But that's not exactly a huge deal as it's a simple step of turning it back on. The only time I've seen settings issues is when the user's computer was having a really difficult time installing a particular update then for some reason that particular user's computer had some settings issues after the update completed. So settings changes is unusual, but many users experienced settings changes after updates even in Win XP, Vista, 8 and 7, so that's not exactly something unique to Win 10.
If you can't tolerate the look and feel of Win 10, or be bothered to take the time to make some of these changes, then your only solution is to stay with Win 7. Win 7 will run just fine until the day comes when software and hardware device manufacturers stop making legacy support for Win 7, and it happens to be an item you specifically need, or your browser reaches its end of support which would make your internet browsing dificult. There are people who even still run XP. It mostly depends on your computer habits and needs as to how long you can continue to live with aged technology.