You can do a lot of things with the Tesla Cybertruck, but you can't tow it behind your ebike to sleep in on "bike-packing" trips. You can, however, do exactly that with the Cybertruck-inspired Cyberdrop trailer – or at least you will be able to, once it reaches production.
After watching a few videos of this thing in action, I can probably estimate that the cons outweigh the pros by at least 10 to 1.