Hello, we are moving into a new build, and I want better sound. I am an undemanding user and absolutely clueless about audio. Currently, we have Microlab FC330, so any upgrade is guaranteed to be an improvement 😀
Room: Approx. 6x4m, in an apartment building (we do not want to annoy the neighbors).

The sofa will be all the way to the patio doors. The room is further open and continues. The picture only shows the living area.
TV: Sony XR-75X90J.
Usage: Mostly Netflix, YouTube, and a TV streaming service.
Expectations:A truly immersive 5.1.2 surround sound system (for Dolby Atmos) to create the feeling that the film's action is happening all around me, and a sound quality that I will enjoy for years to come.
Budget: I am looking for a good price-to-performance ratio, ideally sticking around €2,000 – €4,000, and this budget must include the AV receiver.
Design: Design is crucial for my wife. She prefers either maximum built-in speakers or some aesthetically pleasing/designer ones (e.g., thin floorstanders).
I will be grateful for any advice.
Room: Approx. 6x4m, in an apartment building (we do not want to annoy the neighbors).

The sofa will be all the way to the patio doors. The room is further open and continues. The picture only shows the living area.
TV: Sony XR-75X90J.
Usage: Mostly Netflix, YouTube, and a TV streaming service.
Expectations:A truly immersive 5.1.2 surround sound system (for Dolby Atmos) to create the feeling that the film's action is happening all around me, and a sound quality that I will enjoy for years to come.
Budget: I am looking for a good price-to-performance ratio, ideally sticking around €2,000 – €4,000, and this budget must include the AV receiver.
Design: Design is crucial for my wife. She prefers either maximum built-in speakers or some aesthetically pleasing/designer ones (e.g., thin floorstanders).
I will be grateful for any advice.