Poe2 is definitely releasing in a far more finished state than d4 did.
A lot more? Diablo 4 in fact wasn't finished. Not only they forgot to put content to the game but even what we had at release was far far from finished. I could list so many examples. I think they gave no time for the dev team to finish the project for some reason.
And GGG seems a lot more responsive than blizzard was initially.
"Lot more".

We can put it that way.
It only took Blizzard half year after release to fix the resist problems and the gem problem (was reported million time in the first opened beta from the 3 open betas, much before release).
How long time needed for GGG to react on the map teleport problem, the low drop of currency, the replaceable sockets? Hmmm, days-weeks?
The difference is so huge between the 2 teams and the end result shows this very well.
Zknight