"MacOS on ARM handles memory differently, try it you might like it."
The only sense in which this claim is true is that macOS on Arm uses a 16KiB page size, while macOS on Intel uses a 4KiB page size. This is actually less space efficient (more wasted RAM due to partially filled pages), although it has performance benefits (N CPU TLB entries cover 4x as much RAM).
If you needed 32GB RAM to avoid swapping on Intel hardware, you still do. There isn't anything which profoundly reduces memory use. Arm Mac hardware does tend to perform lots better while swapping than Intel, which fools some into thinking it is using less memory, but it isn't.
(The reasons for the better performance: one, Apple put in a hardware accelerator block for the memory compression feature which allows macOS to sometimes avoid swapping to disk, so light swapping which only invokes the compression-based pager is faster. And two, the SSD controllers integrated into Apple Silicon are sometimes much faster than the SSDs in the Intel Macs they replaced.)
The only sense in which this claim is true is that macOS on Arm uses a 16KiB page size, while macOS on Intel uses a 4KiB page size. This is actually less space efficient (more wasted RAM due to partially filled pages), although it has performance benefits (N CPU TLB entries cover 4x as much RAM).
If you needed 32GB RAM to avoid swapping on Intel hardware, you still do. There isn't anything which profoundly reduces memory use. Arm Mac hardware does tend to perform lots better while swapping than Intel, which fools some into thinking it is using less memory, but it isn't.
(The reasons for the better performance: one, Apple put in a hardware accelerator block for the memory compression feature which allows macOS to sometimes avoid swapping to disk, so light swapping which only invokes the compression-based pager is faster. And two, the SSD controllers integrated into Apple Silicon are sometimes much faster than the SSDs in the Intel Macs they replaced.)