My Levo had a SLX drivetrain. First two chains were in 0,5% after 1000km, third a broke after 150km. I used muc off lubes. Then I changed to Peatys and fourth chain had 1200km and it wasn`t even 0,5% but I changed because I had extra chain and I sold the bike. Huge difference just because of different chain lube. Cassete had 3700km when I sold the bike and it was still going strong. I use the bike only for trails, not for commuting. New bike will have GX drivetrain and I have read that XO chain will do at least 5000km without any wear

so I ordered that and will put to the new bike and test if there`s any truth on that…