Good affordable smart TV?

I want to buy a new TV. It should be a Smart TV with 4k and HDR. Since I'm not very familiar with it, I wanted to ask whether there are a few professionals here who could recommend a cheap model. I've already had a few models in mind, but I don't really know if they're worth it:

https://www.amazon.de/...07RCLKZB8/

https://www.amazon.de/...07X35FXJW/

Stay away from the Xiaomi TVs, they have extremely bad test results!

It is a little more expensive but also better than the Hisense

https://www.otto.de/...853042868/

that is on offer at Otto and has a significantly better app availability than the Hisense and Samsung

https://www.otto.de/...864715095/