Hi. Just bought a new Octavia auto transmission two liters engine. Same parts on mk4 jetta or golf BTW

Last owner toll me he never serviced the automatic transmission. So my question on 125.000 miles is to change the fluid or not, someboby on other forum toll me that is too late (?) That the clutch material is "suspended" on oil and any new oil is missing it, with the risk of future slips.

Any advice?