The post-Ice Lake models of the XPS series all support 32GB of RAM on the Developer Editions; I have one. Until that point this was Intel's fault because before then they were behind on their memory controllers, nothing Dell could do about it.
Fingerprint reader support for Linux in general has been a sticking point for a very long time, including on the XPS series. (I still fondly remembering the blobs needed for my old ThinkPad's reader to work...) But it's basically the only thing that requires blobs from my knowledge. I don't even bother with it on my stock Fedora install, though it is quite slick in Windows, I admit...
Ah, strange. I'd just looked at Dell's site, but couldn't configure the Developer Edition for anything over 16GB. Probably my fault I couldn't figure it out... plus their order/configure site is terrible.
Fingerprint reader support for Linux in general has been a sticking point for a very long time, including on the XPS series. (I still fondly remembering the blobs needed for my old ThinkPad's reader to work...) But it's basically the only thing that requires blobs from my knowledge. I don't even bother with it on my stock Fedora install, though it is quite slick in Windows, I admit...