Renting a property abroad - is it profitable?

Some say that it is better to invest in real estate rental in Poland, others advise that you should think about renting a property abroad, due to the lower prices of local real estate - how would you advise? I am aware that a lot depends on the location, but maybe someone knows which countries are the most profitable for rent? And what are the possible inconveniences or additional fees related to the purchase and rental of, for example, a flat abroad?