also....when did the Czech Republic start calling themselves something different?
I think either has always been acceptable. Czechia is a little less formal and easier to write out or put on a soccer shirt than the full formal "Czech Republic" name.
I noticed yesterday that in Russia's absence the former soviet republics have an unusually strong showing in this tournament. Romania, Czechia, Slovakia, Georgia, Hungary, Poland, Albania, Ukraine and three of the former Yugoslavian nations - Croatia, Serbia and Slovenia - all qualified. Its nearly half the tournament