How does the keyboard go away again?

I have the following problem: Whenever I click on the home button or on the one to close the apps (circle and square), the keyboard opens automatically. I don't know if I came up with it by mistake, but it's totally annoying.

Does anyone know how I can fix it? Have a cell phone from Huawei.

With me I can remove the keyboard with the TouchIcon.

But mine looks different 🤷♀️