Urgent solution needed for shower wall.

What I rather wonder is how you want to attach that.

Such a construction is currently in our new house until the bathroom is completed.

On the partition wall, a narrow strip is built up at the height of the divider so that a straight glass element can serve as a partition. Nothing is cut to size there.

The brick section is tiled normally.

edit: You already have tiles... that is of course a serious planning mistake, sorry to say so.

Rod and shower curtain too creepy, that was an idea I quickly discarded.

The glass element according to the glazier very expensive.

The bathtub definitely has its reason, both children (2 and 4) use it almost daily, so everything else was not an option.

What exactly is very expensive?
If you want glass, have various glaziers make you cost estimates. That can vary a lot.
In my opinion, plexiglass looks cheap, then I would rather take a nice shower curtain.
But I also think a fixed panel is not that practical. You will either get an entry that is too narrow or it will still splash onto the floor.
Therefore, my choice would definitely be a shower curtain.
With that you might also visually mask the missing row of tiles on the top left;)

I also see the problem with the mounting. Profiles should have already been installed by the tiler here. One solution would have been to mount the showerhead on the left side, then you would have a straight wall. But that doesn’t help you anymore now. How often do you use the shower? I would (even if not nice) tend towards the shower curtain.

Thank you first of all for all the answers. To respond generally, I am writing one message to answer all questions.

According to Glaser, the cutting and mounting is the problem or the high cost factor. He could not give me a specific price, but tends to be 3- rather 4-digit including installation.

We basically use the shower daily, future plans include a shower in the basement that still needs to be built but has been postponed due to other priorities.

The "missing" row of tiles is intentional, the opposite row is at the same level. I renovated the house with about 90% own effort, I had to read into and familiarize myself with many things and more. Therefore, the planning is not 100% compliant with the rules in some points. But I saved a lot of money, which now goes into other things.

I will take a look at the plexiglass at the hardware store and visually assess the quality. I have nothing against shower curtains per se, but I do not find them attractive. I will also get another opinion from a glazier.

A little under a thousand doesn't really shock me. The price is definitely okay.

I have a partition from Schulte for our bathtub, not as complicated as yours, but also not standard. I submitted an inquiry on the homepage and then a plumbing company got in touch. They were very committed. Maybe there is a fixture between the tub and the ceiling with an additional element towards the wall.