Many newer Windows laptops are now having their ability to update ram and storage removed as well. I believe the newest intel architecture introduced this, but my information might be out of date.
There are Intel CPUs which come with bundled RAM. For example Intel Core Ultra 5 238V. It's like SoM: RAM is mounted directly on the CPU package, not even soldered on the motherboard. I'm not sure what particular advantages does that bring over traditional packaging, maybe shorter wires to allow for faster turnarounds between CPU and RAM. But there's zero chance of upgrading or replacing RAM for sure.
Yes, totally. By introduced I didn't mean they were the first in the space but rather they have introduced it to the laptops they're shipping now. But yes, it's been a thing for awhile on other architectures as well.
