Chair help for newbie please

[KIB]

Hiya, could anyone tell me if they think this would be a good tech chair?

https://www.ikea.com/gb/en/p/lidkullen-active-sit-stand-support-gunnared-beige-40445783/
Or any tips for what to look for?

And this for client?

https://www.dunelm.com/product/kendall-velvet-chair-bottle-green-1000147456?defaultSkuId=30645876
Thank you!