This is the wrong question. The question is "Does Linux have support for this laptop (wifi, gpu, mux if it exists, etc.).
The difference between distributions is generally not that significant[1] when it comes to hardware support. They're just "re-bundling the same things in different ways". But the Linux kernel is the Linux kernel on all of them. If it doesn't support your WiFi chip on Ubuntu then it likely won't support it on Debian. And if it does support it on Ubuntu then it likely supports it on Debian/Fedora/immutable-flavor-of-the-week.
That said - Dell is not "all about Ubuntu" - they support Linux on select products. And they also support RedHat. With systems not in their list of supported ones you'll want to google the make/model as well as "support Linux" to see if you can find whether anyone else has run into issues with something not working and what you might be in for if it doesn't.
[1] I await the army of pedants telling me about that one thing on their distribution that is different.