Is it difficult to rotate the toilet in the same direction?

Yes! The problem is how to solve the water supply and drainage! It generally doesn't work! Unless you're on the first floor!

It's not a "wall type", it's a "strong row type", right?

The two of you mentioned have their own advantages, the one is stronger but also bulkier, and the split is lighter, depending on which one is suitable for your room. It's all going to be drained into the original sewer pipe. >>>More

That's going to change the sewer pipe, and then the other side might have an odor.

Feng Shui says that the location of the toilet is the place where yin qi gathers, and the toilet door should not be facing other doors, and the bed ...... is placed in the toilet place >>>More

This will be developed when the time comes, and you can pay attention to it.