Although not commonly used, it seems the Swiss do not have such skepticism of high-value notes.

I would routinely pay for things (groceries, electronics, etc.) with 100CHF and 200CHF notes without the cashiers batting an eye, while I used the 1000CHF note once or twice for large purchases.

A Swiss friend of mine (who granted is a little old fashioned) said he would use them to pay bills for his business and would often use 10x 1000CHF notes for a monthly bill.

Another interesting point around the money laundering aspects, he was talking with one of the central bankers and it was now considered unpalatable to introduce any bigger sized notes. My friend's point was that when the 1000CHF note was introduced in the early 1900s, adjusting for inflation it was worth a lot lot more.

Down payments with 1000s on big things like cars is very much accepted here.

Where's here?

Switzerland. They’re talking about 1000 CHF (Swiss Franc) notes.

In Russia banks love giving out 500 euro notes when you exchange rubles to euros, the problem is most places in Europe don't accept 500 euro notes for payment, even for sums that are more than 500 euro (such as paying for hotel stay). From what I heard even most banks won't accept them unless you have an account, so they're totally useless to bring for a euro trip.

In NL both €200 and €500 are almost universally rejected.

As far as I'm aware, here in DE they have to take such large notes as long as it's proportionate to the sum owed. Coincidentally, Germans do love their paper money more than most.

Yep. I was a bit annoyed that Scandinavian countries go cashless, but I was caught a few times in restaurants in Germany that didn't accept credit cards. On short trips, I never bother carrying cash.