Got the sihoo m57 cause it was cheaper, after 5 days of usage I can say it's pretty sturdy and heavy, could lean back fully without falling which I couldn't do on my old chair, full mesh feels pretty good, only qualm is the lumbar support

I put it at the highest setting and it reaches the curve of my back fine, but even at the lowest depth setting it feels kinda uncomfortable and protruding, maybe because I haven't sat properly in so long so I think it's engaging my core muscles or smth like that, but I still feel kinda uncomfortable regardless, not sure if it is pain or soreness but once I pull it all the way down I feel instant relief, is it supposed to be like that?

Gonna give it a few weeks before I just straight up remove the lumbar support tbh, hopefully this is normal and I get used to it