Honestly Arm and Risc-V are under rated. Not all are libre compatible but there are a few that work well with exclusively free software and have much less power draw.
If you want to talk about underrated look into POWER CPUs.
Motherboards like the tallos 2 are completely open source( except for an nvme storage controller) and they already offer x86_64 levels of performance. The only con right now is software support and the cost.
Not only will ARM and Risc-V likely not save Linux it will most likely harm it. I doubt there will be many Linux computers running Arm and Risc-V and the few computers that use those architectures won't run Linux well. M series Apple computers only run with reverse engineering and even then many basic features don't work.
It's great for the price, but it's got plenty of issues.
The gpu is worse than useless most of the time, the cpu is perma throttled on Linux, split battery issues and you can't choose which one to use or when to stop discharging, the keyboard is worse than on the xx20 models, USBC can't be replaced
Also, you missed the point of the joke. T480 most certainly does have IME, and it can't be corebooted.
Debian uses its own version of the Linux kernel with proprietary parts removed; however, if you want to install it on a machine that does have hardware for which there are no free drivers (which is to say almost any machine out there in the market), you'll have to install proprietary parts; in the last version, Debian 12, system does that by default.
Intel Management Engine is a CPU-level microprogram that runs with highest priority and does not have open code, so essentially every PC with Intel CPU runs some arbitrary code we cannot verify. Same for AMD Platform Security Processor by the way, so there is no simple escape.
Oh and BIOS is proprietary too, and only a few select machines can have a fully libre BIOS successfully installed on them.
Thereby even if you go to essentially libre version of Linux, there will, almost universally, be pieces of obfuscated code with no disclosure on what they're doing there.
IME is even worse than that. It runs on a supervisor processor in the chipset that has privileged access to the memory, peripherals, and CPU, and can run when the rest of the system is powered off. IME is how Intel AMT can serve as a KVM-over-IP, and just because you don't have a CPU with Vpro doesn't mean all the components aren't there for an exploited or backdoored ME firmware to remotely log your console or inject keystrokes.
Didn't knew about the Debian part I thought they said that they will ship an installer with non-free by default and another installer which you can configure.
Btw I'm on my way to build a new x220 with libreboot and GUIX can we get more free than that? Xd
Isn't that a hardware problem though? At some point you want your software to work, and years of reverse engineering for it to do so is a long time for it isn't it?
I was never a fan of SystemD for that reason. As much as I’m a Windows person, I always admired Linux for its simplicity of “everything is a file”, “keep things in text where possible” and “a program does one thing and one thing only”, and between the binary logs and monolithic chunks it just threw that out the window.