I think it depends on the business. Maybe fixing 20 year old electronics might be hard, but it still work for (overengineered? underchanged?) herman miller aeron chairs.
Though even Aeron chairs, I had one fixed under warranty after 12 or so years. Then it pretty much fell apart after another 12 or so years. It might have been fixable again but it didn't seem worthwhile to faff around especially mid-COVID and I'm glad I just got a new one which was rock solid. (At the time I wished I could try a couple other models but I ended up being very happy just getting a direct replacement.)