The bottleneck isn't the sticks, it's the chips. The chips are the same for consumer and server applications. What's been happening is that big companies have bought nearly all the wafer capacity for the next year or so, and perhaps some of that capacity has also been redirected from DDR5 to LPDDR5. If a stick manufacturer drops out of the consumer market that kinda doesn't matter, because manufacturing sticks is relatively low tech compared to manufacturing the memory chips. You can compare it to manufacturing video cards vs. manufacturing GPUs (as in the actual processing elements).