Many of the chairs in officemate can be purchased on Lazada and they are all POS.
I don't do so much work now, but before and during Covid, I was spending 12-16 hours at my desk. The work was such that I couldn’t move for the duration apart from 5 mins toilet breaks. I thought spending 3k down at officemate was the key but the padding went, the fake leather split, bars running in the seat appeared. It was painful to do my shift, some days I was close to tears, constantly moving to find comfort. I bought some similar chairs from Lazada, but they were equally as bad, basically the same as chairs as officemate but cheaper. In the end I bought an ikea Markus - still going strong, I really like it, a little beyond your budget, but way better than anything else I tried.