BG3 is far suprerior in terms of combat and obvious technical advancements, but has a lot more simpler and straightforward story. It's more BG simply put, while PoE has shades of PST on it.
That being said, PoE kinda overstays its welcome at some point, with its somewhat uneven/slow pacing and...
I've come to appreciate PoE more after playing through BG3.
It's rough around the edges and clunky in more than one instance, but has great depth for an RPG, both in gameplay and themes.
That being said, I recall White March part II being kinda meh.
It looks more like Tactics than Fallout 1 and 2, in the sense of how crisp and polished it is. Or something. I haven't played any of those games in a long time.
Either way, it's awesome, but only now did I read that it will be in a decade or so.