My lad is 26 and is into his gaming. He’s bought a Recaro type chair (based on budget) and when I was doing a recent project for my wife, I used his chair/desk as an office chair - pretty good for that!
I’ve asked for his advice and he responded with the ‘Secret Lab’ brand; https://secretlab.co.uk/collections
Not sure if this is the kind of thing you are looking for.
Also not sure of the floor type you have but with castors, my wife has a plastic strip that runs under her desk, and stops her office chair marking the carpet.
Top tip! To get indentations out of carpets… put a tea towel on it and then run a steam iron over it for a bit.