Seeing as you spend so much of the time welded to a desk, I would not scrimp. My company did a lot of research many years ago and bought more than 5000 of these
https://www.hermanmiller.com/en_gb/products/seating/office-chairs/mirra-2-chairs/ (available in sensible colours too). They are not cheap at above £600 each, but mine has lasted 10 years easily and I purchased one with my own money for use at home too (secondhand). They are incredibly adjustable and incredibly comfortable, without doubt I would repair or replace immediately if I needed to.
The company is now using the Herman Miller Aeron, which I also love, but would not pay the extra £300 personally.