The records seem to suggest not, but most of us are a bit too young to confirm that :d....The books say that with the theater air war and specifically strategic bombing winding down in the ETO as the B-29 came online, USAAF bomber command decided that the B-17 and B-24 were doing well enough to finish that job in their current capacities. The B-29 however had the range and capacity to singularly take the same kind of strategic campaign to the Japanese from captured bases in the Marianas and China, so there it was deployed. It would have just been classic overkill to waste it in the ETO in 1945 with no air opposition and every major city and industrial complex in Germany already in shambles.