Tri-boot Catalina/Win10/Ubuntu19 on Dell XPS 9650 (i7-7700HQ, 32gb RAM, 1tb NVMe, touch 4K UHD w HD 630 & GTX 1050). Two caveats are WiFi card needs replaced for iCloud (30$ on eBay) and fingerprint scanner only works under Win10.
Re: guide -- DuckDuckGo/Github/Google is your friend -- this model in particular is rather common, but which guide is right depends on your comfort level.
Re: guide -- DuckDuckGo/Github/Google is your friend -- this model in particular is rather common, but which guide is right depends on your comfort level.