They all do not have preorder systems, none.
The most clever I've seen was for EVGA graphic cards, with a queue system based on when you signed up for in stock notifications...
The rest, amd latest zen3, nvidia rtx3xxx, amd 6XXX GC, ps5, xbox...
Nope, just a very low supply rate and bots grabbing stuff..
( speaking of which, check https://github.com/jef/streetmerchant
or nvidia-sniper, easy to extend to do the deed if you really want stuff ).