Are you willing to consider a mail-forwarding service?

In my country (further East from you), it’s a somewhat popular and reliable way to buy stuff that no retailer or the vendor itself offers.

I got Oculus Rift S that way once, years ago, and it was pretty painless - some services will help you handle a lot of the paperwork greatly. Maybe even entirely for you.

The big benefit here is that they usually have the warehouses in the countries that do sell what you want, and established logistical chains to ship things safely and I would even say quickly.

The bigger benefit is having a legal entity to work with, which lets you insure the goods and press charges if the mailer steals, loses or damages them.

More expensive than kind strangers on the internet, but if you’re that careful, maybe this is an option.

That said, your Steam region and Valve’s restration for purchase makes this route difficult. Maybe you could create an account in another region, like the US or Germany, generate some activity and purchases there, wait for whatever minimum Valve sets, and order via the mail-forwarder (to their warehouse, from where they ship to you).

On an unrelated note, I did not expect to see a Swiss in the same boat of all people. Viel Glück am Kaufen!