I can’t find the exact one but this is very similar: SIHOO Ergonomic Home Office Chair, Adjustable Headrest and Lumbar Support,High Back Executive Computer Chair(Black) https://smile.amazon.co.uk/dp/B07BKTDT3F/ref=cm_sw_r_cp_api_fabc_F9RX2N6S87QT8PF7TP22?_encoding=UTF8&psc=1
3 of us from my office have bought this chair from amazon for WFH. I wish we had nice chairs at work because I would’ve just jacked mine but this is way better than those! It’s no Herman Miller but it’s pretty good imo. The lumbar support is nice and I’m someone whose back always hurts.
A good ergonomic chair I can recommend is the Sihoo ergonomic chair sold on Amazon, recently bought one to replace a similar chair and wish I had done so sooner.
Amazon. The seat is on the firm side, but it’s pretty comfortable for long periods of time.
SIHOO Office Chair Ergonomic... https://www.amazon.com/dp/B07BKTDT3F?ref=ppx_pop_mob_ap_share