To answer your question ZAQ123, I bought the bike last summer ans i noticed the bearing sideplay 2 month later , I know that i the third owner. But for sure their was a lack of maintenance. Or maybe one of the previous owner ride the bike a lot in rain and with the heat of the brake maybee it didn't help for condensation. Or the bike was pressure-washed behind the disc brake to removed all the dirt and brake dust wich is not a good idea do to that.
Bearing seal seem perfectly installed and good.