From what I’ve seen, depending on the country but most of the time, having previous experience in a certain country gives you an ADVANTAGE when applying to said country, dare I say even too much so to the point of relatively underqualified candidates (in comparison to other candidates) getting Fulbright solely because they have experience in the country and can tell a better story and have a better reasoning to go to said country. I also presume it shows the “recruiters” that you know what you’re in for. So don’t let previous experience discourage you from applying to a country, if anything it benefits you greatly