Same experience so I'll just double you.
I thew out a DXRacing some white chair that's name I don't remember anymore. It lasted 2 years... The first summer I think it already started fraying the leather off... terrible design to be fair.
I didn't have an ACd room because I live in a country where we get hot weather for like 2 weeks a year, but apparently that was enough against bare skin as it sticks to it and when you move, which I did, a lot, it just kind of tore on it.
TL
R
Buy proper ergonomics from office chair comapnies. All of that gaming crap is there to basically leech easy money from $uckers, of which I was one.
Right now, sitting on one cheap IKEA chair, for the 3rd year right now. Flintan I think. And this isn't even a good chair but it's better than the DXracer.
The next one I buy I'm going to put some proper research into it and get something that lasts. Will be expecting to spend in the 4 digits probably.