Start by picking a desk 100 to 120 centimetres wide to fit your gear without...

https://seo.edu.rs/blog/how-much-space-do-i-need-just-to-sit-comfortably-at-my-desk-11216

Start by picking a desk 100 to 120 centimetres wide to fit your gear without crowding. Use a monitor arm to free up space and position your screen at eye level. Leave at least 60 centimetres of chair clearance for comfortable movement