They are not struggling with QC, they are cutting corners and trying to sell cheap parts under a big markup.

Please remember that this is the same Lenovo that had issues with installing spyware to muzzle change from their own customers.

I was 10+ years Thinkpad user, bought T480s (over 2.5k euros) that had failing keyboard. I sent it back, and after 6 weeks got the same keyboard, only the key 9 is now collapsed, and as a bonus I can not enter BIOS anymore: computer just happily reboots now.

I believe that this will be studied in schools as a lesson on good brands being destroyed for short term profits.