French President Macron went on American TV recently and announced that the French government was planning to open France to American tourists (and those from some other countries) this summer. Said tourists would have to provide either proof of vaccination or a recent negative covid test.
Right now France is quite a bit behind the US on vaccinations, so I would expect that one would be more likely to be exposed to the virus in France than in the US. However, if you are vaccinated and have a healthy immune system that is able to respond well to the vaccine, I don't think that travel to France would pose an undue risk to you.
But this move probably does pose a risk to people in France who are not yet vaccinated, or who got the AZ vaccine, which works well against the older and UK variants, but not at all against the SA variant. Healthy people who are vaccinated are probably less likely to give the virus to someone else, and definitely much less likely to catch it in the first place, but there are a lot of people with compromised immune systems who are probably not too different from unvaccinated people in terms of catching and spreading the virus. And of course there are lots of false negative early covid tests, so someone who was recently exposed, gets a negative test, then goes to France is also a risk.
So I'm a bit surprised by this move, as the French government has up to this point taken more actions to prevent spread than have most countries. Right now US citizens who live permanently in France can't fly back to the US to get vaccinated and then return home, because there are only a few reasons for travel considered legitimate, and vaccination isn't one of them.