Sounds very similar to Finland. We've been under similar lockdown for two-ish months now, and we are down to maybe 25 new confirmed cases per day.
I'm kind of shocked how few people use them in Switzerland. Not that I know for sure how much do masks help, but it's so cheap to get them! And the supply is now plentiful. Talk about cost/reward, especially when compared to debilitating costs of things like shutdowns ...
In either case, Europe is cool for now. Let's see what will the Autumn and Winter bring.
And Switzerland probably never will pass this threshold.