> become e-trash in a couple of years, while these "plastic" laptops can last a decade before being discarded as junk.
My experiences different, I'd still be rocking a 2014 MBP had it not suffered massive liquid damage. All Macs and MacBooks I or relatives have crossed or are going to cross the decade threshold with aplomb.
8GB of RAM is plenty fine for me. I just don't have a thousand tabs opened (I never do anyway, whatever the RAM amount), which is mostly the usual problem but the state of the web platform and its runaway resource usage is another debate entirely.
> one of the main components gets out of production it's all about luck
You make it sound like it never happens with non-Apple hardware. With the flurry of devices that are put out every other month by a lot of hardware vendors, "out of production" often means a couple years, barely enough to cover warranty claims, and then they coast on stocked spare parts.
I am in the habit of trying to revive legacy hardware when people throw it away, and have a closet full of hardware barely older than 2-3 years that could not be repaired because of a broken part that should have been perfectly repairable were the part be available. Usually these get fixed by having two broken machines and doing a transplant, not by sourcing original parts from manufacturers. Batteries are loads of fun, even just one year after a product release it might be impossible to source an original one, either because they have additional import legislation so they're outright not distributed overseas, or because they're deemed consumables when they're field-swappable, and thus often not covered by warranties (and thus vendors don't make any effort stocking them), so you're left with buying third-party ones of obscure origins which can be either duds or fire hazards waiting to happen with a non-negligible probability. At least Apple puts forward some hard numbers so I know what I can rely on†.
Hell, just last year I restored a PoS system that had 1GB of RAM and a 8GB SSD, put some lightweight Linux on it, recovered a couple of ESC/POS thermal printers, hacked some bridge in Ruby between the PoS software and the printers, and the device chugged along for a solid year before finally giving up for good, which saved the store owner from shelling out stupid amounts of money and helped them bootstrap their business.
With hundreds of machines from various vendors that went through my hands I feel I have enough statistically significant data to extract trends and draw my own conclusions. These don't support that Apple devices become e-waste in short order, but I respect that your experience and opinion might be different, even though I don't adhere to it.
While I agree to most of the glued/soldered/planned obsolescence criticisms related to applethings I do feel the need to point out those "obsolete" macthings tend to run Linux just fine. I should know, writing this on a 'late 2009 27" iMac' which I got for free due to its video card being broken (which it is no longer, 8 minutes in the oven at 195°C is all it takes) running Debian. While it is also possible to get more recent versions of macOS to run on these things this is not nearly as easy nor useful as running Linux which just supports the hardware without any qualms. Apple does not want you to use older hardware so they don't build macOS for machines which are perfectly capable of running it. Installing unsupported versions is made possible by monkey-patching the release in a rather hit-and-miss fashion, often leaving parts of the hardware (bluetooth, sound, wifi) without or with sub-standard support. All this while Linux runs flawlessly on the same hardware.
Depends on which one you're using, mine contains a Radeon HD 4670. There is a lot of NVIDIA on the PCI bus but this does not seem to be an obstacle to the thing running flawlessly:
There is some Broadcom as well - the Bluetooth controller, which works fine - as well as some Qualcomm - the wifi controller which, again, works fine.
This is a 'Late 2009 27" iMac', running the internal display as well as an external 1920*1200 24" monitor through a DP->HDMI cable. Everything works, including the silly IR remote control thingy (tested using the IR blaster on my phone).
Non-latest macOS versions still receive security updates. Safari 15 is available for Big Sur and Catalina. It's not like one has to always upgrade to the last major version.
When they go out of security support these machines work quite well under Linux (as I could test myself, I recycled a bunch already).
My experiences different, I'd still be rocking a 2014 MBP had it not suffered massive liquid damage. All Macs and MacBooks I or relatives have crossed or are going to cross the decade threshold with aplomb.