What do you mean by safe? You are as likely to be robbed or knocked down by a car etc as you were 2 years ago.
Covid hasn’t gone away and vaccination rates in Switzerland are quite a way behind the U.K.. Even with both jabs, you aren’t 100% “safe”. Over 80% of Brits have had their first vaccine and 59% have had both, yet we are seeing the number of positive Covid cases triple in a week and hospital cases are rising, albeit not at the same rate as earlier in the cycle. I haven’t seen this week’s stats yet, but of the 42 people that died of the Delta variant last week, 12 had received both shots.
Things can change rapidly for better or worse with this pandemic. Yes, things are better than earlier in the year, but as nationalities begin to mingle and mask wearing etc is reduced, no one knows what the outcome will be.
To be “safe” I would wait until next year. If you do travel, be prepared for flight and schedule changes numerous times, so be flexible.