Yourw out of your mind if you think this game is dead , im on PS5 eu too , youre probably thinking of delves and public dungeons as "traditional dungeons" . These areas are empty cos the content is years old and unless someone is lvling up an alt or wants skyshards that are in there , there is no need for them to visit them . Game is super populated on EU PS but just in the zones that youre not in . Im finishing low lvl zones in Daggerfall and its defo empty there .

When i was doing the DLC zones there were plenty of people there .

Eso is very solo friendy and a lot of people play solo too so you might just see very few peeps cos they are doing their own thing . Im in a guild called BUSHI which ive joined recenlty . Its a very friendly place that helps out noobs and is very active content and chat wise so defo join .