This might be obvious to you, but dont buy HP laptops. I've twice been tempted by the cheap price, twice I've been burned. Cant wait till this current piece of shit croaks and I have an excuse to buy something stable and without endless amount of bloatware.
Been loving my Framework laptop 16 - customizable with easy access to the WiFi card. Can upgrade it over time too as parts come out! Buy your own storage and RAM, cheaper than from their website.
Been daily driving it for a few months with few issues on Arch, and officially supports Fedora and Ubuntu.
It looks like Framework only offers entry-level Radeon GPUs.
If you want to do GPU compute in a laptop and money is no object, something from Lenovo's Legion series of gaming laptops is probably a good choice. You can get one with an RTX 4090 in it, and the series (or many models of it, at least) appears to have reasonably good Linux support. (Disclaimer: I've never used one.)
For AI stuff you'd want something with at least an RTX 4060. AMD GPUs for laptops are not great and most of them don't support AI. Any card that's good for AI will also be good for gaming so you'll be fine there.
You probably want something with 32gb of ram, too.
As for pulling out the wifi card, there's no need. Most laptops let you disable wifi through the BIOS, completely disabling it at a system level.
Dual booting works on anything.
Generally I'd recommend Lenovo Legions, ASUS ROG stuff. If you're rich you can also look into Razer I guess.
AMD GPUs are much less of a hassle on Linux, though - looks like Nvidia are moving towards open sourcing their drivers soon which may make this less of an issue for op
Thinkpads -- a laptop with a rich history of Linux use -- can be bought with an integrated 4090. The ThinkPad P1 Gen 6 can be configured with an i9, plenty of flexibility for drive space and RAM, and an RTX 4090. It'll run you, even used, around $3k to $4k, which is the equivalent of a desktop replacement. But it'll be pretty doggone compatible with any Linux distro you'd like.