Ergonomic, comfortable office chair

I am also more or less tied to my workplace at home because I have 2 large monitors there. I need them for most tasks.

I once had a Sedus Quarterback and it was really great, priced around 500-600€, you can customize/equip it individually. But this will be similar with all more expensive providers.

Sedus Mr. 24 ... Sitting like on clouds, even on days with 12+ hours.