Eth2 is a Proof-of-Stake system and doesn't rely on the computationally heavy Proof-of-Work, so it's unlikely that Eth2 is a major contributor to a lack of supply.

Ah no computer sales were already at black friday/holiday season levels for the last 4-5 months. Chip supply already couldn't meet the demand and then you got some big generational advances in gpus Amd/nvidia and cpus Amd add new generation consoles so the demand went through the roof. The annual production capacity is for 1000 but the demand now 1500-2000 so the shortages are here to stay for at least another 6 months to a year.

I’ve managed to get my hands on a 5800x but I think it’s simply because it’s by far the worst value proposition in the new lineup and demand is probably not as high.