The joint alignment from wall to floor is not symmetrical, what to do?

What I notice, but can't really see clearly, is that the flush button on the toilet has 2 broken tiles as its centerline -- right? I would find that good, for example.

Yes, I can see that in the photo looking towards the window.

What is also good is that the "prominent" end of the shower stops at the wall with a full tile,

I can also well imagine that they oriented themselves on the 140 cm shower partition: 2 full tiles are 1.20 m plus 20 cm in the corner. That’s how and no other way you plan a 140 cm shower. And on the floor, they possibly oriented themselves on the toilet. There is a full tile in the middle. Or is that not centered?

You think so? We are renovating for the first time and are really at a loss. We had simply imagined it differently and don't understand why he tiled it that way. Unfortunately, this was not discussed with us beforehand; he could have just called once to clarify it. We don't have an architect. I'm surprised that none of you find it that bad... Maybe we're just getting too worked up?

Yes, I also don't think it's nice and it would annoy me. But you can only prevent something like this by discussing it with the tiler before the work starts.
You can only write this off as a learning experience.
But if it bothers you, have it redone, otherwise you'll be annoyed by it every day.

I don't care at all and I've already seen bathrooms that adhered to the maxim of the cross joint, which led to the nastiest segmentation. If you want that, you have to plan the bathroom accordingly and commission a laying plan with the tiler. Only then is it ensured that it will turn out the way you want it. One can now discuss the typical chicken-and-egg issue... ultimately, it was not part of the contract and was therefore not executed with cross joints. You'll be smarter with the next bathroom.

If I can read the pictures correctly, the expert started with half tiles in the corner. This saves a lot of tile cutting and tiles. Then the wall probably became longer than 1.4 m, more likely 1.5 m. Whether the 10 cm then moved the joints far enough for it to work cannot unfortunately be seen from the pictures.

In my opinion, it is optimal to start with the somewhat narrower strip in the corner and then apply 3 tiles.

Large tiles require good planning. Unfortunately, you did not provide that.

I also see it the same way as some here, but if it bothers you, then it's better to have it changed sooner rather than later. After some time, tile adhesive holds so well that you can no longer remove the large tiles without damage.

Then the wall is probably longer than 1.4 m, more likely 1.5 m. Unfortunately, it cannot be seen from the pictures whether the 10 cm would have shifted the joints enough for it to work.

Yes exactly, that's 1.50 m on the wall. What I don't quite understand is that the glass partition will only be 1.40 m.

In my opinion, it is optimal to start with the slightly narrower strip in the corner and then apply 3 tiles.

What do you mean by that? With three tiles plus a narrow strip, you'd be over 180 m, right?

I thank you all very much for your opinions and tips. That helps immensely. Another thing that we noticed with the shower and wonder about is that the wall tiles do not rest on the floor tiles. At the transition from wall to floor, he installed a metal strip (?). What is that and why did he do it that way? We only know it to be tiled all the way down to the floor. Attached is a picture