High-end Linux ARM laptops are coming!

They pretty much do, but they do make modifications to those machines, as well as order very specific configurations all for the sake of making sure it all works on GNU/Linux. And as they said in the video, they started getting more serious about firmware stuff after the ME got public attention.
Sounds like they'll be actually creating their own original designs for this new ARM effort though. I can't imagine that the typical OEMs would offer much support for that.

Okay, that's interesting, but what are the benefit of using ARM to the end user? Better battery life than x86, I suppose?

Better battery life certainly
simpler RISC architecture. From my perspective, that means less likely to have design flaws, much like having less code running on a system reduces attack surface.
And of course less botnet. Look into the Intel Management Engine and AMD Platform Security Processor/Secure Processor

Reminder that System76 is shilled by kikes like Lunduke.
The Laptops are totally overpriced. If you buy that shit you're just giving money to kikes.
They use Intel processors and tell you how great they are at using ME cleaner. How does any of that justify the price?
They're just kiking you faggots.

So what would you recommend? Some laptop by a mainstream brand? They certainly don't do jack shit to ensure Linux compatibility or disable ME
A Libreboot chinkpad with a 1280x800 screen and that can barely run a browser at this point?
I'm not saying this particular company is flawless or the best option either. There's others like Purism that do stuff like hardware killswitches for camera and microphone, although they don't seem to have any plans to use a different architecture at this time (aside from the phone)

x86 is flawed by design.
Remember Specter? that's only possible because x86 sucks.

Reminder that just because Lunduke shills it doesn't mean its bad. Or are you running windows10, perhaps?
Though System76 seems to want to cuck itself with inclusion directives.
blog.system76.com/post/178887761292/celebrating-adalovelaceday-with-gnomes-first

No, it isn't. and the problems of spectre and meltdown wasn't specific to x86. x86 has many flaws such as the compatibility mess and extensions wrapped around it. Plus the inability to leverage modern parallelisation at the instruction level like in VLIW, ARM or MIPS arches.

ARM is flawed by design. There's no UEFI/BIOS standard. You need a million different """ROMs""" to support more than a single device.

Just choose one that doesn't have nvidia graphics and use me cleaner on a tested CPU.
Can't remember them claiming that their stuff is tested to be Libreboot compatible.
How about any other laptop that matches my description above?

This is why phonefags are bound to android.
They don't actually have a choice.