According to the above page, neither the RAM nor onboard storage are upgradable.
They are not.
Apple began soldering RAM and SSDs on their laptops in around 2016.
Nothing is upgradeable.
Does this model have the notorious butterfly keyboard?
Yes - 2020 was the first year without the butterfly keyboard
The 2018 CPU is barely faster than the 2015 revision (Passmark 2782 vs 2462) and limiting it to just two USB-C ports wound up being the Achilles heel in this revision. Apple’s purist statement that USB-C was the “one port to rule them all!” failed miserably because, in a desktop situation, one delivers power and the other gets used for (choose just one) {external monitor, wired keyboard, trackball, printer, USB-C hub, etc…}. Apple product managers ignored the reality that most customers can reuse the same peripherals, after all, they’re using the same hands & eyes! Why change input devices and monitors?
Would this be a good value prop for someone retiring and getting out of the 30+ yrs of Windows to see if they can actually perform basic tasks in a Mac environment? Theory being don’t spend $2k on new Mac laptop and find out the old dog just can’t learn new tricks.
Why not go the Linux route on an existing PC for about $0? Make a live USB of a distro, boot it up, and play with it. Like it, install it multi-boot. Don’t like it, nothing’s changed.
(I have 6 computers running Mint and 2 running MX Linux. Still have more running Windows, however.)
waste of good money --not worth the $350 + tax + shipping.
Probably.
Most people browse web on their computers; this will do it as well as anything else. Some run Office; this should do it well… but Microsoft got funky with how it works.