I plan to buy a desktop from them soon because I'm not into having a laptop now that I work from home permanently and I also want to run some games on it that you absolutely cannot run without a graphics card.
I never had problems with sleep on any of my Linux laptops. The problem is with shutdown. Shutdown is shutdown when I'm using the Noveau driver for my NVidia card but it's reboot when I'm using the NVidia driver. Unfortunately Noveau doesn't get sync right for my card with both Wayland and X11 so I have to use NVidia with X11. The few times per year that I have to poweroff I press the power button right before the BIOS screen appears.
At least version 470 of the driver fixed the brightness control keys. The didn't work for years and I remapped them as hotkeys to run xbacklight.
Markets are weird.
Edit: This is what I'm talking about: https://www.youtube.com/watch?v=OHKKcd3sx2c
it used to be true, but sleep sucks now in the M1 line. When I leave my 14 inch mbp on sleep with 20% battery before bed I wake up to a dead battery.
I have two M1 macbooks, one that I use almost daily and another that I only use a couple times a week. None of them have had any problem with sleep or battery life, I'm actually extremely happy with them in this regard.
Speaking of Linux, on my particular HP laptops (Elitebook 840 (intel 11th gen) and 845 (zen 3)) it wipes the floor with Windows. Even though "HP Recommends Windows 11".
Main reason being that it actually stays asleep. Windows, half the time, will wake back up moments in. When it stays asleep, there's a high probability that it will somehow crash and reboot [0] or just randomly wake up while being closed in a bag.
There's no power management while the actual OS hasn't started booting [1], so you get the screen going at full blast, etc. Good times, especially in a bag or at night [2]. It also sometimes starts spinning the fan while pretending to sleep. It does indeed get rather warm, so I'm not really sure what it does.
What Windows sometimes does and Linux never does: wake from sleep to a black screen, wake from sleep to a garbled screen, sometimes with the fan blowing like a jet engine.
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[0] No, it doesn't reboot for updates. The event log talks about unexpected shutdown. It also doesn't run out of battery, since it also happens while being plugged in.
[1] I use bitlocker with TPM + PIN, so it doesn't boot on its own
[2] I don't usually close it because the screen touches the keyboard, so it gets dirty.
On my old Intel Mac the so-called "smart sleep" would leave my laptop hot to the touch after carrying it in my backpack. Utterly useless. Even at its best it would still result in a 20% reduction in usable charge. Just give me a hibernate option, FFS.
Meanwhile, my wife's Apple laptop fails to go to sleep if it's plugged into a Dell monitor via USB-C, instead it wakes up and dings every time it's about to go to sleep.
As always in Apple world, how well something "was nailed" depends on your exact circumstances, and when something doesn't work, you have no hope of ever getting it to work.
So I'll share my number one optimization trick. Install powertop and get familiar with all the tabs it provides.
Use: sudo powertop --auto-tune
it can make a HUGE difference.
After a while all the tricks started to snowball and I was able to set up my laptop so I could swap between nvidia discrete graphics (2-3 hours off a full battery) and the integrated Intel Xe graphics (13.5 hours off a full battery). Power consumption on suspend under intel graphics is negligible. Wake is flawless. Now I find myself wishing I knew windows better so I could get the same graphics-swap-trick working under windows too (dual booted system).
[0] https://news.ycombinator.com/item?id=17039414
(Yes there's a response in that link from S76 folks but I'm still curious on the buyer side your reasoning.)
Edited to add: the repair was free of charge.
It supports a company selling linux laptops, and they make sure everything works out of the box, and provide support. Pretty much the same reason to use their OS, which is basically just Ubuntu + drivers. It should all "just work" which is exactly what a lot of people expect from a laptop.
If you have a desktop system that's giving you problems in linux because of incomparable hardware or crappy drivers it's a pretty easy to find what component is working well for other people and swap some parts, but laptops are such a pain I don't even want to open one up if I can help it. It sounds like System 76 works with Clevo to put together certain builds they might not offer normally. Why risk getting a similarly spec'd Clevo only to find out it's got a different wireless chipset or GPU variant and now you're stuck with a bunch of of problems to try to work around.
What company does that?
It'd be nice if they made the laptops themselves, but not even Apple does that.