I've heard about these new issues with the NVIDIA RTX 3080 cards, and it's indeed concerning. It's essential to stay updated on such developments, especially if you're a user of these GPUs.
The RTX 4080 has already been discontinued. Don't buy old RTX 3080
According to Board Channels, a site aggregating sources and information from NVIDIA, AMD and Intel board partners, NVIDIA has recently announced a discontinuation of two GPUs. The inventory cut off is now in place and these graphics cards would no longer be available starting this quarter. It is alleged that NVIDIA has stopped mass production of these GPUs.
The cards in question are RTX 4070 Ti and RTX 4080. NVIDIA has distributed the last inventory and board partners are now placing orders for their successors, the alleged RTX 4070 Ti SUPER and RTX 4080 SUPER model that are expected to launch in January.https://videocardz.com/newz/nvidia-reportedly-stops-mass-production-of-rtx-4070ti-4080-gpus-now-focusing-on-super-variants