Meanwhile, my Apple Mac Mini 2012 (Intel CPU) - which needed extraordinary efforts by me to make it triple boot MacOs, Windows 10 and Linux (trust Apple to make it hard to install other OSes on an Intel CPU PC) - is slow and fussy because of its meagre RAM and old HDD (not SSD). But the Apple service center refused to upgrade this Mac Mini to new RAM and new SSD, citing Apple policies to not allow such upgrades. Apple has made it quite hard to custom upgrade such iDevices, so this little PC is lying unused in my cupboard, waiting for the rainy day when I'll get the courage to tinker it by myself to upgrade it. And even if I did upgrade the hardware, this Mac Mini can only be upgraded to MacOS Catalina, and it won't get security upgrades, because Apple has stopped supporting it.
P.S.: I hate Apple.
Your comment mostly makes sense but this is a weird mention when Windows is even worse on this now, Win11 not supporting much more recent machines.
What you will tangibly miss is low noise, low power draw hardware and very, very specific workloads being faster than the cutting edge AMD/Nvidia stack people are using today.
However, the reason my personal laptop is a Framework 13 and not a MacBook Pro is because I value upgradability and user-servicability. My Framework has 32GB of RAM, and I could upgrade it to 64GB at a later date. Its SSD, currently 1TB, is also upgradable. I miss the days of my 2006 Core Duo MacBook, which had user-serviceable RAM and storage. My Ryzen 9 3900 replaced a 2013 Mac Pro.
Additionally, macOS doesn't spark the same type of joy that it used to; I used to use Macs as my personal daily drivers from 2006 to 2022. While macOS is less annoying than Windows to me, and while I love some of the bundled apps like Preview.app and Dictionary.app, the annoyances have grown over the years, such as needing to click a security prompt each time I run lldb on a freshly-compiled program. I also do not like the UI directions that macOS has been taking during the Tim Cook era; I didn't like the changes made during Yosemite (though I was able to live with them) and I don't plan to upgrade from Sequoia to Tahoe until I have to for security reasons.
Apple's ARM hardware is appealing enough to me that I'd love to purchase a M4 Mac Mini to have a powerful, inexpensive, low-power ARM device to play with. It would be a great Linux or FreeBSD system, except due to the hardware being undocumented, the only OS that can run on the M4 Mac Mini for now is macOS. It's a shame; Apple could probably sell more Macs if they at least documented enough to make it easier for developers of alternative operating systems to write drivers for them.