It would be mostly smaller markets that would still have supply issues. Big markets like the US and major Euro countries shouldn't have issues but idk.
I'm not 100% sure but over here might still be a case of supply issues

eg: If Amazon au site has low unit numbers (or all gone) plus local retail stores have limited supplies (no walmart here afaik) then a buyer might turn to ebay au or whatever. Last time I did notice PS5 and Xbox S/X being sold on ebay au they did seem cheaper than 6 months or more ago though
Yes scalpers are there but they generally aren't asking as much as they were.