It’s huge. I’ve been using ~10 distros sporadically over the past 25 years, and I never ever felt like I could depend on my systems running Linux. Because one simple mistake by either me or an update could render the computer unusable because I didn’t (and still don’t) know how to fix it. And that was always something that finally happened that made me revert to Windows full time. Tumbleweed is the first distro ever where I feel like I’m standing on solid ground instead of on a house of cards that I can’t put back together, because of the snapshots. It gives me confidence and I feel like I finally can use Linux while slowly learning it at my own pace. Absolutely love it.
Also, I see that I have a typo to fix in my previous comment lol.
IANAD and AFAIU, not in kernel mode. Things like trying to read non existing memory in kernel mode are supposed to crash the system because continuing could be worse.