Got back into Wrath after completing Baldur's gate 3 and this absolutely slaps harder than BG3. The Pathfinder system is far superior to DnD 5E and the sheer scale of the story is incredible.
The Evil Lich path is the best Evil Path I've ever played. Dark Urge is like loony toons in front of how evil I can be as a Lich which is also the best Undead/Necromancer playthrough I've ever had in any game. And you can be even MORE evil in other Mythic Paths like Swarm.
The mythic paths is the best system in a CRPG ever. The game feels wildly different depending on your Mythic Path. I've not played all of them yet but the amount itself is very good.
The combat is very good. I still have no idea how it ultimately works and while I like the feeling of uncertainty and freshness, many people might not like it. It's definitely far more complicated than 5E. The sheer amounts of Classes, Subclasses and abilities is also unparalleled. The easy switch between Turn based and realtime combat is pretty good when fighting hordes of trash mobs. I prefer Turn based myself but Realtime is very useful time to time.
You can definitely make mistakes with character creation and it's also more 'difficult' to respec characters compared to BG3 since they can only be respecced from the level they met you at.
The story is amazing. Imo it's better than the story of Baldur's gate 3. The characters are not as developed as Origin Characters in BG3 however which is somewhat of a downside. Also there is no full VA so reading is required and the writing is pretty good imo so it won't bore you.
The game definitely has pacing problems at multiple points through out the story. Enemy padding also gets really really bad by the end.
If you liked Baldur's gate 3 or any other CRPG, play this because it's superior.
I couldn't get into BG3 having played KM/WotR. I absolutely love experimenting with different builds and exploring all the quirks of the system, I never beat either of them because I love restarting with new character ideas. I actually didn't love the extra buffs you get in WotR because I enjoy the early/low power levels more. I also like some of the limitations of KM since I get a little overwhelmed with choices in WotR. Most of my time has actually been spent on KM's Tenebrous Depths DLC where I solo the random dungeon with permadeath to turn the game into a rougelike, which gives me the opportunity to try out so many builds.
I'm a pen-and-paper veteran, and the system is really interesting to me but generally in person I don't want to go crazy with rules exploits, so these games are really fun because I don't have to worry about that, and the system is full of weird quirks.
Both games are fantastic, and WotR definitely has some QoL improvements.