Just like the title says.
I didn't even finish my second playthrough because I got bored of it. That is not a knock on this game. I only played through Skyrim twice before I got bored of it as well. Now I find myself playing user made dungeons in Solasta with the Unfinished Business Mod pack, because that has just about every available race, class, subclass, and feat from the books that I care about available, and a bunch of the Steam Workshop dungeons are pretty high caliber stuff. If Larian released a toolset for users to create custom campaigns for BG3, I'd 100% come back and try some of those out, and I bet they'd be amazing, because of the creativity I've seen in the player community. If that never happens, I won't be playing BG3 again for many many years.