Got an X1-Carbon a couple weeks ago. Made some great parts right away. Then I had to print on of my bigger parts. Part sticked great and looked perfect. Till I set it on the table and it rocked. Put a machine parallel across the bed and a 1.5mm feeler gauge fit right through the middle. Tried this test cold and hot with little difference. Manually trammed the bed. Started reading about it on these forums and it bummed me out. I got this thing to do mechanical pieces that have to fit together. The statement from Bambu was disappointing. Should have read this forum more before I bought it. Seems like there are fixes but all are not ideal. Hopefully they will come up with a fix.
The Aluminum tape is time consuming but a solid idea. Many are doing a lot with glass plates (several threads) even those without warped beds.
Surprised that new of a printer and the beds are still showing up like that. A switch was made a while ago.