What do you mean by open and closed? ChromeOS is based on ChromiumOS, which is open source. I guess macOS is based on Darwin technically, but the ratio of open source to proprietary is much higher for ChromeOS than macOS, no?
What is it that you want to install on ChromeOS that you are unable to? All of the usual Linux and open-source stuff works fine on the built-in Linux environment on it. Possibly even a little better than MacOS in some cases, since you don't need to worry about Apple app signing. There's not literally nothing you can't do, but the list is a lot shorter than most people think, especially those who haven't really tried ChromeOS in a decade and think they're all a glorified web browser on $200 hardware.
I'm willing to bet it's easier to set up a Linux VM on a Chromebook than on a Mac. But the other side is that anything not explicitly requiring Linux will work natively in macOS, where you also get a nicer terminal. Like I've not needed a Linux VM in years, and the author doing web dev probably won't either.
Crostini is built into the Chromebook, vs macOS where I hear a different container solution every time someone asks about it. Colima is a new one to me. Maybe it works great and the others do too, but full 1P support is a step up.
Well, then you can only put it in dev mode and use chromebrew. Which I am glad exists, but even installing node can be a pain and the way to get it running changed over the years.
But how? You can install Linux and android apps on chrome os. I understand this perspective might intuitively make sense, but we need to analyze if it's actually true.
You can even install linux on Chromebooks, and ChromeOS has upstreamed / opensource many of their codes.
In other perspective, ChromeOS supports running Linux apps w/ GUI without much differences. You just open your terminal, type `apt install XXX`, then `XXX` should work out-of-the box.
I don't see any reasons that ChromeOS is less open then macOS
The entire system firmware is open source, so it’s relatively straightforward to replace the system firmware with Coreboot and EDKII to boot normal UEFI Linux. It works excellent. mrchromebox.tech and docs.chrultrabook.com have all the nitty gritty details.
ChromeOS is the absolute last desktop operating system I would choose to use for myself. Linux, macOS, and Windows would have to be completely dead and buried before I would switch, and at that point I might just consider abandoning tech altogether and joining an Amish commune or something.
When was the last time you tried ChromeOS, out of curiosity? I'd always reach for Linux first, but I'm hard-pressed to put Windows or macOS in second place when both are so miserably bloated.
...except the operating system. And the silly notch. And the weird keyboard. And the hard palm-cutting corner. And the reflective screen. and the finger-print-magnet materials. And the small amount of RAM. and the small SSD. And the weight.
Other than that, it's perfect!
(On the blance,still better than any other laptop)