I have a property not abroad but in another canton. In my opinion you should only do this with a property near where you live and if you have time. Otherwise you need someone on the ground you can trust, probably a family member, and even then you need to be prepared to visit.
I make a good return ~ 7% but much less than the stock market over the past 10 years (it has made 3-400%) and profit per hour of my time spent much less. I am happy it does give me some diversification though
Work: no matter how clearly you write your house guide every rental comes with questions from client eg special check in times, coffee machines, wifi codes. Then you have issues eg ants, something broken. You need do this with love and attention or the client can leave you a bad review. You need to manage cleaners and / or agents. Then you have maintenance and repairs. Occasionally you get the odd client who doesn’t like the place and you need to deal with their ongoing complaints during their stay
Airbnb take ~15% fees, amount is variable I think