I like both games, sometimes I don't want to deal with POE2's bullshit re: endgame crafting and such. Diablo 4 is much more of a "gulp an edible down and play like a god for four hours on a Saturday evening" game.
Both have their place, and D4 has made some steady progress since launch. Really hoping they keep sanctification in for subsequent seasons.
That being said, POE2 Druid clears, passive tree clears (although it's cumbersome enough that I hesitate to point to it when trying to promote the game to friends), the bosses clear - there's a ton of great shit in POE2 as well.
Honestly, having both games on rotation means I'm always eating good for whatever flavor of ARPG I want to play.