My advice, assuming you're on HN with a technical background, is to create your own bot for monitoring product availability on your store of choice. It's a pretty small investment of time, and it frees you up from the time spent watching a Discord or refreshing store pages manually. Set it up to poll at a reasonable frequency, set up some form of push notification, and find that it's not that hard to get ahead of the horde who are all relying on someone else to do the dirty work for them.
Signed,
Someone who got a launch day 3090 from the Nvidia store