Supply chain problems taught me a lot about acoustics and sonic performance.
I just did a project converting an unused room to a 2 channel listening room. Hegel integrated driving Focal towers. Electronics were in place first then had to wait for the room treatments to get through the supply chain slowness. First impression was that the sound was too bright in the untreated room.
Side panels arrived and were installed, nice improvement, less bright, soundstage better side to side. Then some weeks later the ceiling panels arrived and were installed, big improvement, sound stage better front to back and the brightness was gone.
The lesson learned was don't underestimate how much the room affects the sound do don't frustrate yourself swapping equipment before you get your listen room optimized.