The camera doesn't work on the current XPS13 if you upgrade to a 6.X kernel (which, to be fair, means moving outside of Dell's packaging.) Technically this is Intel's fault, as they haven't released firmware for it yet. Still, hopefully the Dell team avoid similar issues in future configs by ensuring better driver support. It's a nice laptop otherwise.
I’ve had a couple of these. They’re fine. It’s also sad that this is basically the only Linux-preinstalled and supported hardware from a mainstream company. When I have a choice it’s between one of these or MacBook Air and I’d choose the Mac at this point and forgo Linux
https://www.lenovo.com/us/en/p/laptops/thinkpad/thinkpadx1/t...
They do however support Linux, and have the best upstreaming support that I've seen getting fingerprint readers, webcams, etc all with working kernel drivers.
https://www.lenovo.com/us/en/faqs/operating-systems/how-to-i...
The XPS's I've tried in the past have always ended up with unsupported hardware after a while, so I've written them off.