People say if you run tubeless, and have a flat while out on the road, you can always put a tube in.
If you read the OPs earlier comments, with that wheel/tire combination, it is very difficult to put a tire on with a tube in.
It's the rim that makes it difficult to mount the tire. Some tires are harder than others but rims that don't have a low "valley" in the center don't have a place for the tire to go to relieve the effective diameter. I don't see how having a tube in there could have an effect on it, the tube will get out of the way.