Puzzled by why anyone would downvote a pure question. Wide distribution of guns is an obvious commonality between the US and Switzerland; if that's offensive observation please let me know why!

Probably because only the US has the kind of gun violence that you're wondering about. I don't think in Europe, the idea that someone is going to come after you with a gun because you pissed them off generally hits the radar.

Someone may find the question offensive because of that.

Fair enough.

It's a very common misconception that it's legal to own/keep a gun (after having done military service) but not being able to get/keep ammunition.

According to this video you can't keep preciously-lent ammunition from the military. But you can for sure buy your own.

https://youtu.be/L00Pajw4NoY

As to why people don't use it or aren't scared, I guess they just aren't as wild...

It's definitely not related to the population's gun ownership ratio. I would say gun violence is probably comparable with our European neighbours. It's just way lower compared to the US.

Also, from my experience, there is not a clear trend whether companies in Switzerland want employees to keep working or if they just let them go during the notice period. I've seen many examples of both.

I have the impression that (although I did not check for data beforehand to confirm my assumptions) that gun violence is very low in developed countries, with the USA being the outlier.

I believe the overall positive employer-employee relationship in Europe is much more of a product of legislature and cultural norms, than the threat of violence.

Even in US, it's not a strict rule. I gave my notice more than a month in advance and retained access to all employee spaces (both physical and digital) until my last day. Coincidentally, I own enough guns that describing it as an "arsenal" would not even be an embellishment it usually is.

At the end of the day it's more about culture (i.e. people's expectations of what is normal) than any objective factors.