That's not accurate. For an average user 8Gb RAM shared with the GPU and a really fast nVME bus...the RAM is just L4 Cache at this point and there's little to no penalty to using swap like there was with north bridges, south bridges and spinny disks.
The only penalty is using up your flash's write cycles; but of course, this works to Apple's favor because it means you'll need to replace this thing sooner when the flash dies. Best part? You can't easily replace the flash because it's soldered to the board.... and the amount of people that could do this repair properly is close to non-existent.
Eventually...maybe...considering the sectors get flagged and there's spare sectors to be rolled into service...and odds are the battery is the real bottleneck before the Flash becomes an issue.
Try running a browser and adobe creative suite along with a darktable/lighttable. That kind of photography workflow also fills up the tiny available storage really fast so the macs end up being unwieldly octopuses of fragile USB/thunderbolt devices. I don't do it myself, but I do do tech support for them when they go wrong. And usually it's because they run out of the paltry 8GB of ram.
