Apple anticipated the global RAM shortage by designing its M-series chips with a unified memory architecture and system-on-chip (SoC) integration, enabling more efficient use of limited RAM through aggressive memory compression and fast memory swapping with SSDs. This approach allows devices like the $599 MacBook Neo to run smoothly with just 8GB of RAM, offering a competitive advantage as rising RAM costs force other manufacturers to increase prices or limit options.
https://www.macworld.com/article/3121948/how-apple-solved-the-ram-crisis-before-it-even-arrived.html