Plants as privacy screens

I also have the thornless blackberry, it produces a lot of fruit, I have it in a container.

Bamboo does not need as much water as was written here. Definitely much less than normal grass. We have about 10 different varieties of it here in the garden and that for about 15 years. They are watered in the summer maybe once a week, if at all. Since they are evergreen, it is important that they are also watered in winter. Most people forget that and in spring the bamboo is then dried out, not frozen. Our forsythias and dogwoods, for example, need to be watered constantly in summer, the leaves wilt very quickly, while the bamboo Bissetii would only need to be watered once a month, it withstands a lot.
Best regards
Sabine

I would not put up with the cherry laurel.

It is neither ecologically sensible nor simply easy to care for and attractive (the latter two only if you keep it in check).

I would rather consider holly.

Why is cherry laurel not ecological?

Animals do not enjoy it and it is not even suitable for composting ...

I could still offer blackberry - only hydrochloric acid can harm them, otherwise they spread better than cherry laurel

And completely undemanding - basically need nothing.

Stop with blackberry. How do you even get rid of it, except by digging it out completely? It spreads like crazy in our garden, fortunately not yet established, of course without any berries.
A landscaper once suggested yew to us. I don’t know if it has already been mentioned here. It is supposed to always be green and you can cut it back completely and it will grow green again, so it doesn’t always get wider when you need to cover the brown...

Unfortunately, the yew is very poisonous and is therefore not suitable for families with children or animals.

Best regards
Sabine