Yes, they are for the most part over the top as far as story line, and though Lazel seems the most "normal" in background her personality puts her at the top of my list for early elimination.
Lae’zel is normal for a githyanki. But githyanki are rare in Faerun. Oddly enough, I find her one of the more tolerable companions even with her personality.
Lae'zel is pretty grounded for a BG3 companion even though she's Githyanki and that says a lot about the writing. She's quite normal among her people, if appropriately ambitious and fierce to be an adventurer. Her personality fits her background and it gives her room to develop into something more humble and understanding while traveling with the party. I like her too because I believe her character.
Gale, Karlach, Astarion and Wyll seem like something out of a fairy tale, even in Faerun. I can't take them seriously. How and why would a tadpole enter a dead brain? It's a living creature that obviously needs a living host for ceremorphosis. Clearly they just wanted a vampire because vampire. And not a cool scary Bram Stoker vampire, but a little sadistic Twilight teen at that.
Shadowheart is fine even though her name and outfit are ridiculous for a "secret" Sharran mission. She could have been so cool if she was
actually hiding her faith instead of flaunting Sharran symbols everywhere and introducing herself with an ominous Sharran name.
