Neither. It was a way to eliminate customer-installed third-party RAM upgrades, charge the Apple price for RAM via configuration option, and make people buy new Macs sooner instead of letting them extending its life by a few more years.
I don't know why you're buying the products of such an evil company or posting on a forum where people discuss these products.
In any event, I've had lots of wonderful computers and other products with those options. Most interesting anecdote: I had a 2009 27" iMac. Nearly every single part of that eventually broke down before the whole thing went down after about 8 years. I had to have the display exchanged several times, the internal spinning HDD failed and was exchanged once via an Apple program, and sometime later it failed again. The CD drive also failed. Remember that in those days, AppleCare couldn't be extended forever.
After that, I've had several more additional 27" iMacs over the years with evil non-user-upgradeable (*) SSDs, no more CD drives. no more displays that were separate from the glass etc. etc.
Nothing ever failed on a single one of those. I still have a 2020 27" iMac. Never had a problem with any of those evil non-upgradeable components. What has been a problem is sometimes getting defective RAM from OWC. They were great about exchanging it, but that's still annoying. Has never happened to me with builtin evil soldered RAM.
I remember from decades ago when tinkering with cars was a thing and cars lasted 10 years. Nowadays they last at least twice that long with their evil non-tinker engines. Or TVs had to be repaired. I haven't had any displays break since LCDs became a thing. All that is to say that this may all be very evil, but also takes away a lot problems.
(*) = I know they could be exchanged by some people, but not regular users.
Wake me up when they have a good enterprise support. Read too many horror stories about Mac Pro / Xserve owners struggling with repairs and troubleshooting
I have some news about the Mac Pro and Xserve, but I don't know how to break it to you. I suggest sitting down.
When companies serve a billion or more people, there will always be horror stories.
I prefer AI adapting to us. We just need it as a tool, not as surrogate for humans.
Profound. I would like to add that money can't buy happiness and everything happens for a reason. Let me close with the fact that love means never having to say you're sorry.