Maintenance Volvo in general

Hello guys, have a question to you about how you care for your elk. I would be particularly interested in the care of the leather seats with a 2 year old car like mine. I got the original leather care for Volvo at Scandix, which is supposed to be quite good. Is a thorough wet wipe of the leather seats also at the young age and then only treat with the leather balm or would you also do the cleaning? What do you use for the paint? Have the color sapphire black metallic. Thank you for your advice Greeting Ulf